打包电子应用程序后，节点子进程立即退出

问题描述

我在电子应用程序的GUI部分有这段代码，从终端运行时效果很好。我使用'electron-packager'打包应用程序，然后我开始遇到一些问题。

I have this piece of code in the GUI part of my electron app which works perfectly alright when run from the terminal. I have packaged the app using 'electron-packager', then I started getting some issue.

最初，子进程立即终止并提供代码127，我通过使用此处讨论的'fix-path'模块解析了该代码。

Initially, the child process was terminating immediately and giving code 127 which I resolved by using 'fix-path' module as discussed here. https://github.com/electron/electron/issues/7688

即使在此之后，该过程立即退出代码1，我无法解决此问题，因为没有报告错误。一旦子进程退出，有没有办法捕获此异常/错误？

Even after this, the process exits immediately with a code 1, I am unable to resolve this as there is no error getting reported. Is there a way to catch this exception/error once the child process exits?

const fixPath = require('fix-path');
let launch = () => {
fixPath();

const path = "SOME PATH";
var command = 'node ' +
              path +
              ' -d ' +
              ' -e ' +
              ' -r ' +
              ' -p ' + 30 +
              ' -w ' +
              ' -g ' +
              '-server__ ';


const child = childProcess.exec(command, {
  detached: true,
  stdio: 'ignore'
});

child.on('error', (err) => {
  console.log("\n\t\tERROR: spawn failed! (" + err + ")");
});

child.on('exit', (code, signal) => {
  console.log(code);
  console.log("\n\t\tGUI: spawned completed it's work!");
});

推荐答案

可以使用child.stderr数据事件处理程序来捕获错误。我在我的脚本中添加了这段代码，我可以在控制台上调试输出问题。

One can use child.stderr data event handler to catch the error. I added this piece of code in my script and I was able to debug the issue with the output on console.

child.stderr.on('data', function(data) {
  console.log('stdout: ' + data);
});

请参阅此文章，这有助于我解决此问题。

Refer this article which helped me to solve this issue.https://medium.freecodecamp.org/node-js-child-processes-everything-you-need-to-know-e69498fe970a

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