Require Is Not Defined Javascript Electron

With newer browsers there is support for dragging and dropping files, the browser treats the file input control as a native drop target. I have my electron window, it loads all right except that the JS is not run. js, but if you're looking for the (no longer maintained) example, you can find require-jquery here. Atom is a desktop application built with HTML, JavaScript, CSS, and Node. 이유를 살펴보면 다음과 같습니다. Dec 07, 2017 · by Tzahi Vidas Here’s how I created a markdown app with Electron and React This article is a step-by-step tutorial on how to create a basic markdown application using Electron [https://electron. Defining classes. 以前にElectronアプリのブラウザ側のJavascriptで以下の記述をしていました。. Direct Current is the kind of electrical flow we get from batteries and solar cells, when electrons travel in only one direction. 0版本修改了 nodeIntegration 的默认值,官方说明如下:. I want to use the socket. The IP of an electron is +1. js will not append node_modules to a path already ending in node_modules. 0 ; 質問したいこと. May 21, 2019 · The 'Performance' tab of Chromium (Google Chrome) DevTools isn't always enough for analysing complex multi-window Electron web-desktop applications. Download and install the latest build of Electron for your OS and add it to your project's package. iKBAHT opened this issue Mar 6, require is not defined - at Object. I generated a new Angular 2 project using the new Angular CLI. I believe fopen is a Java function not Javascript. Exactly opposite of previous. Is there any other way to solve this. The information below is provided as a guide to address common issues when updating a 2. I followed Jeffrey step by step in https:. JavaScript Form Validation. The attributes are: multiElement. x eles mudaram o valor padrão do nodeIntegration de true para false, dessa maneira vai ocasionar esse pequeno problemas. Grunt / Gulp all scripts into vendor. In this guide you'll learn how to do that. The only remaining step is to package our app (make an. There are several well. Both email and url are optional either way. Dec 25, 2016 · It is not a problem to run a localhost on the PC, however it would not much be practicable if you configure a localhost on the PC of your customers. If the user pressed Cmd + Q , or the developer called app. If it were not, one can see how this would be a difficult issue to debug. However you can isolate the library you need into. How to enable JavaScript in your browser Nowadays almost all web pages contain JavaScript, a scripting programming language that runs on visitor's web browser. I have index. electronのissueがあった。 jQuery isn't set globally because "module" is defined · Issue #254 · atom/electron Electronではブラウザ側のJS実行時にmodule. 1 day ago · 关于vuejs-templates/webpack 中 “exports is not defined”报错的处理. Takes a pathToIndexFile, an optional menuDefinition to use, if not provided will default to menus/default. Does anyone know why is this happening since require sh. Clone via HTTPS Clone with Git or checkout with SVN using the repository's web address. quit() , Electron will first try to close all the windows and then emit the will-quit event, and in this case. On the other hand, the WF parities of a free photon and of a free electron are not not defined since those WFs are just plane waves (PWs), and PWs don't have defined parity. I then go to go. Drill Through in IBM Cognos BI. jsからSettingsを開く処理を書いたが,Settings画面を開くと「require() is not defined」というエラーがコンソールに表示された。. Oct 23, 2012 · JavaScript not Working in Internet Explorer JavaScript is not working in internet explorer, even when ActiveX scripting is enabled. It's not something language-specific just like the window object in browser-based Javascript is not something in the Javascript language. require('electron') → window. Web applications become more and more powerful every year, but there is still room for desktop apps with full access to the hardware of your computer. Mar 14, 2017 · I'm trying to make an electron app, but a Javascript error occurs in the main process. Electron is a framework for creating native applications with web technologies like JavaScript, HTML, and CSS. Sign in with your organizational account. This is more easily seen in symbol terms. Aug 16, 2010 · Undefined (type) is a built-in JavaScript type. org/docs/tutorial/security. The solution is a method called require that electron injects into the window object at runtime. By default Electron manages the devtools by creating an internal WebContents with native view, which developers have very limited control of. You can use it to avoid using complex require paths in your application. Over at the forums there was a developer who needed to open a second app window from the main process when the user had done something in the renderer process. To meet this requirement, the analysis of SAW atomisation needs to focus on very different characteristics. jsの「Uncaught ReferenceError:require is not defined」というエラーを解決する - コードログ 前へ: flask-scriptとアプリケーションファクトリでflask-migrateを使う 次へ: python – Numpy、N個の連続要素すべてをグループ化. I use the below code to do this thing. The changes to this file are quite succinct as well. Execute the following commands: npm install electron-packager -g npm install electron-packager -D. To create this dialog we use the BrowserWindow object and an HTML page defining the contents of the window. jQuery isn't defined (globally in the window) because "module" is defined, therefore you can't access the jQuery variable as it doesn't exists really, this problem is caused by the following if statement in the library :. Aug 08, 2016 · It complains that gojs is not a module. I'm new with jQuery (I started today) and I'm having this problem with Chrome. 这不是语言特定的东西,就像基于浏览器的Javascript中的窗口对象不是Javascript语言中的东西。 As I said in my comment, you should check out what node. It is not a framework which you could load into another engine like QT. Electron Referente ao curso Electron , no capítulo Introdução e atividade Mãos na Massa: Adicionando CSS e JS 17/05/2019. As a result, any state you might require in your classes won't have been initialized. Isn't the "size" of an electron simply defined as the Stack Exchange Network Stack Exchange network consists of 175 Q&A communities including Stack Overflow , the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Unordered list items are not numbered. What could be occurring is the electron loosing enough mass to be a measurable negative charge and at the same time a different electron gaining enough mass to show a measurable charge. The most concise screencasts for the working developer, updated daily. Do not ask for help doing anything illegal or unethical. js (main process, located at the project’s root). 방금 ionic v2로 new project을 시작했으며 feedparser을 프로젝트에 추가했습니다. When changes to drill-through paths are required, the PowerCube does not have to be rebuilt or updated. No, you cannot, see this thread https://community. js module in Rust. 转载注明原文:javascript – 在Node. js, module dependencies are included using the require() function, such as: var fs = require ("fs"); While require() may be called anywhere in code, some style guides prescribe that it should be called only in the top level of a module to make it easier to identify. The smaller size of oxygen atom produces more electron-electron repulsion when one or more electrons are added. Therefore I created a file for the main process of electron and after building my Angular app with. A partir da versão 5. Instalei o Gulp para concatenar e minificar os meus ficheiros. Query for input to the QueryTask. 이유를 살펴보면 다음과 같습니다. I tested the PHP code without Ajax Request and it returned an array of urls, but if I used the ajax callback it's returning one url only. They will all have the same scope and will work as if there was just one large concatenated file. The work function is the thermodynamic work that can be obtained by reversibly, isothermally moving an electron from the vacuum to the material; this thermodynamic electron goes to the * Fermi level on average, not the conduction band edge:. I have a little problem in a simple javascript app with cordova and jquery defined: When I launch app on Javascript console I read that: Uncaught ReferenceError: prova is not defined. Uncaught ReferenceError: go is not defined. Certain principles and security mechanisms implemented by modern browsers are not enforced in Electron (e. The script can detect the Flash plug-in in all major web browsers (on Mac and PC) and is designed to make embedding Flash movies as easy as possible. Messing with the Mass If you have looked at a periodic table, you may have noticed that the atomic mass of an element is rarely an even number. I had written a few tutorials a while back around Electron, and even one with Vue. Note that the code here should not be copy/paste as I added lots of comments that may break the code. Better local require() paths for Node. I use the below code to do this thing. js file and included it in the index. You can use it to avoid using complex require paths in your application. The child_process. For example, you would use the following code to create a user object, assign a first and last name, and define a function to return the full name:. Note that variables can be defined at any point in your script, including inside a control structure that causes that statement never to be executed. js (JavaScript) code to V8 Bytecode. Since I am quite new to javascript development maybe I should use a different design principle, but searching in this mailinglist and in the jetpack documentation did not help. Fortunately, the packaging and all that stuff do not need to be done manually. This web browser does not support JavaScript or JavaScript in this web browser is not enabled. js and package. Have you heard about progressive web applications?. Christian Engvall. js module in Rust. So the client knows all the functions that are exported from these other files. With Apache Royale and Electron you can publish your projects to desktop applications. In fact, you could watch nonstop for days upon days, and still not see everything!. On the other hand, the WF parities of a free photon and of a free electron are not not defined since those WFs are just plane waves (PWs), and PWs don't have defined parity. ui部分的html页面引入的js会用到jquery. Apr 29, 2011 · In this context, what the calculation you've done actually shows is that an electron and a proton each at rest do not have enough energy to produce a neutron and a neutrino. JavaScript has curly-bracket syntax, dynamic typing, prototype-based object-orientation, and first-class functions. Looks like you have just forgot to put your Imports statement (also, you might want to add System. log appears, not the second one. You may expand PWs in multipoles. A question will arise during these moments. Uncaught Reference. I have added an example for Electron (which has no source code protection at all) and for NW. Scotch is going to help you learn an awesome library in a really fun way. As I wanted to get all of the components together to run a self contained desktop experience I needed local…. Dec 22, 2016 · Hello everyone. Important notice: we will develop this electron desktop app only for Mac (setting up the app for Linux and Windows doesn't differ much but there are some tricky points). For creating distributables like installers and Linux packages, consider using either Electron. js for example, JavaScript in browsers doesn't come with a require function to load modules dynamically. The hole is a missing electron. With newer browsers there is support for dragging and dropping files, the browser treats the file input control as a native drop target. Mashing things together so they all work required a bit of jiggery-pokery using NPM, Bower and Gulp. One of the most common JavaScript errors we see affecting our customers is #jQuery is not defined. Searching the forum i haven't got any post nor any way to resolve this. io处理50000个并发客户端. Electron已经发布了5. 転載記事の出典を記入してください: javascript – Node. com should be allowed to load scripts from the origins you defined while scripts from https://evil. Oct 29, 2017 · Home » Javascript » Cannot read property 'on' of undefined in electron javascript Cannot read property 'on' of undefined in electron javascript Posted by: admin October 29, 2017 Leave a comment. Electron Build cross platform desktop apps with JavaScript, HTML, and CSS. TL;DR: In this article, you will learn how to secure Electron applications with OpenID Connect and OAuth 2. JavaScript's strict mode, introduced in ECMAScript 5, is a way to opt in to a restricted variant of JavaScript, thereby implicitly opting-out of "sloppy mode". GitHub's Electron framework (formerly known as Atom Shell) lets you write cross platform desktop application using HTML, CSS and JavaScript. I mentioned that Electron treats all JavaScript files like they are CommonJS modules. May 03, 2019 · According to WHO (World Health Organization), health is defined as a state of complete physical, mental and social well-being, and not merely the absence of disease or infirmity, reproductive health, sexual health/hygiene, Health addresses the reproductive processes, functions and system at all stages of life. JavaScript (/ ˈ dʒ ɑː v ə ˌ s k r ɪ p t /), often abbreviated as JS, is a high-level, interpreted scripting language that conforms to the ECMAScript specification. You may expand PWs in multipoles. Similarly, if AnnotationsUri is not null, it will be downloaded to the cache system. Fascinating questions, illuminating answers, and entertaining links from around the web. The question is flawed: With Electron, one doesn't need to know. When overriding a method, you might want to use the @Override annotation that instructs the compiler that you intend to override a method in the superclass. What "kind" of input belongs in a couple of the text boxes or whether or not text is required changes based on the radio button selection. 参考: javascript - Client on node: Uncaught ReferenceError: require is not defined - Stack Overflow Uncaught ReferenceError: require is not defined nodeのモジュールをvar…. js just I can not figure out where it was defined. In this scenario, we have just one dependency. js with angular components. There's also a full example app that you can download and play with without needing to add licensing to your app. The work function is the thermodynamic work that can be obtained by reversibly, isothermally moving an electron from the vacuum to the material; this thermodynamic electron goes to the * Fermi level on average, not the conduction band edge:. This program reformats JavaScript source code into Google Style, and also follows a number of non-required but frequently readability-enhancing formatting practices. If the user pressed Cmd + Q , or the developer called app. Currently, only macOS and Linux supported. But we want to disable it for these global variables. Asking for help, clarification, or responding to other answers. Not that I'd ever want to contribute to the node horror stories, but it's important to stress that the http module is pretty low level, and the API almost assumes that end users will deal with a higher level abstractions over it (such as the request module you mentioned). The vertical trend is for electron affinity to become less exothermic in successive periods owing to better shielding of the nucleus by more. Welcome to a place where words matter. Aug 08, 2016 · It complains that gojs is not a module. In this tutorial, we will show you how to build a simple web browser using Electron HTML5 techniques. By continuing to use Pastebin, you agree to our use of cookies as described in the Cookies Policy. js actually is: a server-side JavaScript engine, which executes JavaScript files. Electron Build cross platform desktop apps with JavaScript, HTML, and CSS. The notation travelled from France to Great Britain, where it became standard, although at least one journal did not change from using C to I until 1896. Now I don't want to use Angular in browser but in an electron app. GitHub's Electron framework (formerly known as Atom Shell) lets you write cross platform desktop application using HTML, CSS and JavaScript. js] ReferenceError: require is not defined × Après avoir cliqué sur "Répondre" vous serez invité à vous connecter pour que votre message soit publié. As I wanted to get all of the components together to run a self contained desktop experience I needed local…. The Java™ Programming Language is a general-purpose, concurrent, strongly typed, class-based object-oriented language. For example, if a webdeveloper was creating a submission form that required the username to be no longer than 20 characters, then she would need to check the length of the string before allowing the user to submit data. But we need that object from the electron package, so how do we get that? A simple workaround. On the other hand, the WF parities of a free photon and of a free electron are not not defined since those WFs are just plane waves (PWs), and PWs don't have defined parity. The following CSP will allow Electron to execute scripts from the current website and from apis. If you are an atom with an extra electron, it's no big deal. It would be simpler to create the dialog in the application window, but it is not possible. Bottom line: So, if you get "require is not defined" put a debugger statement before the offending line (for me, it was import { Injectable } from '@angular/core' ), look at what source files have been loaded and make sure you're. What could be occurring is the electron loosing enough mass to be a measurable negative charge and at the same time a different electron gaining enough mass to show a measurable charge. require 오류. Despite the many benefits Electron is lauded for. It's certainly not impossible to hand-sling your own HTTP requests. electron node. How to check a not-defined variable in JavaScript. ready(initMap()). Pdf reports in Electron app 07-09-2018 18:30. nodeVersion String - libui-based frameworks only The version of NodeJS you are packaging for. JavaScript object can be defined in a couple different ways. Electron Build cross platform desktop apps with JavaScript, HTML, and CSS. exports and exports in Node. 参考: javascript - Client on node: Uncaught ReferenceError: require is not defined - Stack Overflow Uncaught ReferenceError: require is not defined nodeのモジュールをvar…. js starts at the parent directory of the current module, and adds /node_modules, and attempts to load the module from that location. Now that we have a working template for our project with Electron and React, we need to make sure we have a stable build for development and distribution. Sign in with [email protected] However, there are other places that you will need to use the global process. io on my web server which I create package. Electrons are point-like particles -- meaning they're so small as to not have a well defined size if any. in this innerhtml datepicker is not working in jquery format. For very good security reasons you can't access the file without the user first selecting it via an file input control. ts to see the definition, the module is defined as “go” instead of “gojs”. Packaging a simple app like this (that does not require any native app functions like interacting with file system or OS) with Electron is a massive overkill. Similar to natural photosynthetic systems, artificial photosynthetic systems require synergistic cooperation between light harvesting, charge separation and redox catalysis. Finally, when I add externals: [/vm2/], Webpack does not throw any error, but the renderer console says Uncaught ReferenceError: vm2 is not defined. Exactly opposite of previous. js file and require it into the index. This tutorial expects you to build the installer on Windows. How can assign multiple selected values to the text field using jquery. Using a modular script loader like RequireJS will improve the speed and quality of your code. The query definition requires one of the following properties: queryGeometry, text, or where. Differences Between HTML and XHTML In XHTML, attribute minimization is forbidden, and the required attribute must be defined as. build Configuration - The electron-builder configuration. Christian Engvall. js run-time which is focused on desktop applications instead of web servers. Packaging a simple app like this (that does not require any native app functions like interacting with file system or OS) with Electron is a massive overkill. Process: [Main](. Each web page in Electron runs in its own process, which is called the renderer process. A JavaScript library for building user interfaces - React A JavaScript library for building user interfacesfacebook. Conversely, if you apply mathematics to a string, JavaScript tries to make it a number. js template you used is not asking for it explicitly. js 内で require するコードが生成されるので、 Uncaught ReferenceError: require is not defined エラーが発生する. For example, you would use the following code to create a user object, assign a first and last name, and define a function to return the full name:. Electron + Node. The atoms you mentioned gladly release electrons to other atoms, but not to vacuum (which is how ionization energy is defined). electron shares the same principle that jsreport, which it is let you build things using web technologies, so using electron + jsreport is a great combination. You may expand PWs in multipoles. 转载注明原文:javascript – 在Node. "Electronでrequire is not definedエラーの解決" is published by Kaoru Mori. Advanced scripters will often need to know how long a JavaScript string is. If a form field (fname) is empty, this function alerts a message, and returns false, to prevent the form from being submitted:. For example: window. It does not mean the aromatic system (which usually still has 4n+2 electrons) actually has a different electron count. ready(initMap()); FireBug gives me a ReferenceError: esri is not defined (this. Webpackの設定. js starts at the parent directory of the current module, and adds /node_modules, and attempts to load the module from that location. const { BrowserWindow. Since these functions are not defined or require'd anywhere in your code, standard will warn that you're using a variable that is not defined (usually, this rule is really useful for catching typos!). electron 업그레이드 후 require is not defined 오류가 발생할 수 있다. GitHub's Electron framework allows you to leverage the best of web technologies in a cross-platform desktop application. Oct 11, 2019 · Before submitting data javascript validate the filed and give suggestion as well Javascript Form validation is used for validate the user's input data for any registration form, contact form etc. Our electron app is composed of two files : main. “Electron : Uncaught ReferenceError: required is not defined” is published by Atul Kumar. Can anyone tell me why all of a sudden my API map page is throwing an "Reference Error: require is not defined" error? I changed nothing in the code, and it just started about 30 minutes ago. A function without a return statement, or a function with an empty return statement returns undefined. Now that we have a working template for our project with Electron and React, we need to make sure we have a stable build for development and distribution. Advanced scripters will often need to know how long a JavaScript string is. Defining classes. Electron已经发布了5. All you need to do is make TS aware of the typings for require, you can either do that by including the typings for node @types/node. Pdf reports in Electron app 07-09-2018 18:30. It is optimized for in-browser use, but it can be used in other JavaScript environments, like Rhino and Node. ionization completely removes the electron from the atom. @Dragonink your given solution is not working. May 18, 2016 · Electron allows you to build cross platform applications using only JavaScript, HTML and CSS (or ECMAScript 6, TypeScript, CoffeeScript or any language that compiles to JavaScript). js module in Rust. Oct 13, 2018 · As a next step, i tried to require() it from an electron a… Hi folks, I’m trying out neon to build a Node. It does not mean the aromatic system (which usually still has 4n+2 electrons) actually has a different electron count. Oct 28, 2013 · If you work with Acrobat JavaScript for any length of time, you'll find all sorts of operations that have nothing to do with security, but nonetheless generate security errors. There are two major ways to create functions in JavaScript: as function declaration and as function expression. squalou changed the title executeJavascript not working, even when 'dom-ready' executeJavascript not working, ReferenceError: require is not defined Mar 23, 2019 This comment has been minimized. js As developers, we often face situations where we need to use unfamiliar code. readonly = false Boolean - Whether to fail if the application is not signed (to prevent unsigned app if code signing configuration is not correct). Ben Nadel gives an overview of the Node. JavaScript's strict mode, introduced in ECMAScript 5, is a way to opt in to a restricted variant of JavaScript, thereby implicitly opting-out of "sloppy mode". prompt() method writes the readline. 0 of the ArcGIS API uses Dojo 1. It does not appear that Electron is doing anything extreme, certainly nothing malicious. This tutorial shows you how to add an Electron menu to your app. Uncaught ReferenceError: go is not defined. When you are not sure that a pure function is working correctly, you can test it by simply calling it and know that if it works in that context, it will work in any context. js, but if you're looking for the (no longer maintained) example, you can find require-jquery here. So, let's try to find out the causes, possible fixes and other details about this - "Uncaught Reference Error" of jQuery in WordPress. I followed Jeffrey step by step in https:. 我刚刚浏览并尝试在浏览器中加载npm模块,但我收到以下错误: Uncaught ReferenceError: require is not defined 我正在从http://browserify. js actually is: a server-side JavaScript engine, which executes JavaScript files. When changes to drill-through paths are required, the PowerCube does not have to be rebuilt or updated. Declarative templates with data-binding, MVW, MVVM, MVC, dependency injection and great testability story all implemented with pure client-side JavaScript!. Remove the exports/require statements and include every single js file (in correct dependency order) into your html file (as script tags). exports in node '. js, porém o seguinte erro ocorre no browser quando vou testar a aplicação: Uncaught ReferenceError: require is not defined Tenho o. javascript - do i need require js when i use babel. Build Version Management¶. Not finding this change documented online in comments or on electrons page, I thought I'd make this self-answered SO post to make it easier to find for future people who encounter this issue. Ordered and unordered lists are rendered in an identical manner except that visual user agents number ordered list items. " I believe that whether Electron apps should be called "native" depends mainly on how "native" is defined. When true, for maps that contain tiled map service layers, you are guaranteed to have the initial extent defined using the extent constructor option shown completely on the map. https://example. Uncaught ReferenceError: require is not defined. × Attention, ce sujet est très ancien. js中解决“Uncaught ReferenceError:require is not defined”错误 - 代码日志 上一篇: 使用flask-migrate with flask-script和application factory 下一篇: python – Numpy,将每个N连续元素分组?. js module in Rust. (a) Calculate the total energy contained in the electromagnetic fields. With all these sites to choose from, the player has hundreds of games available for selection as the best online casino real money with Paypal and many other payment methods. Isn't the "size" of an electron simply defined as the Stack Exchange Network Stack Exchange network consists of 175 Q&A communities including Stack Overflow , the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Lets look at IPCMain and IPCRenderer in Electron. The second parameter to require() is an anonymous function which takes an object that is used to call the functions inside the dependent file. js服务器,socket. Electron 使用jQuery的时候“jQuery/$ is not defined”一. It is not an atom which releases energy, it is the whole system. js and package. Mashing things together so they all work required a bit of jiggery-pokery using NPM, Bower and Gulp. In some cases, adding of extra electron to neutral atom is not an exothermic process. Due to the. Each web page in Electron runs in its own process, which is called the renderer process. js run-time which is focused on desktop applications instead of web servers. Sep 05, 2015 · This is my html code. the difference between the energy of the vibrational ground state of the neutral species (v" = 0 level) and that of the positive ion (v' = 0). Using the Camo ODM (which I created), you can simply treat NeDB datastores as JavaScript classes. A detailed guide on building your very own sound machine using JavaScript, Node. 이유를 살펴보면 다음과 같습니다. To ensure your native dependencies are always matched electron version, simply add script "postinstall": "electron-builder install-app-deps" to your package. I generated a new Angular 2 project using the new Angular CLI. DOM can not be accessed in the main process, only in the renderer that it belongs to. We are currently working to bring you an updated tutorial on this topic! TL;DR. Uncaught ReferenceError: require is not defined These other JS files are also loaded on runtime at the client because I place the links at the header of the webpage. jQuery is a JavaScript library designed to simplify DOM -oriented client-side HTML scripting along with offering cross-browser compatibility because various browsers respond differently to certain. Créer un compte. Shortwave radiation has a wide variety of uses. It came in at around 90MB resident on the main process, with a GPU process of about 70MB, a "zygote" process of around 60MB, and a separate nodejs process around 35MB. Errors like ELIFECYCLE , EAI_AGAIN , ECONNRESET , and ETIMEDOUT are all indications of such network problems. ECMAScript 5. js and Electron. Back in April we finally got to see what a black hole looks like. It does not appear that Electron is doing anything extreme, certainly nothing malicious. So, let's try to find out the causes, possible fixes and other details about this - "Uncaught Reference Error" of jQuery in WordPress. However, there are other places that you will need to use the global process. the first console. js file and require it into the index. I'm new with jQuery (I started today) and I'm having this problem with Chrome. Electron require() is not defined. Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. The adiabatic ionization energy of a molecule is the minimum amount of energy required to remove an electron from a neutral molecule, i. The following CSP will allow Electron to execute scripts from the current website and from apis. One of the most common JavaScript errors we see affecting our customers is #jQuery is not defined. Electron已经发布了5.