spawn

My Node.js script crashes because of a thrown ENOMEM (Out of memory) errnoException when using spawn . The error: child_process.js:935 throw errnoException(process._errno, 'spawn'); ^ Error: spawn ENOMEM at errnoException (child_process.js:988:11) at ChildProcess.spawn (child_process.js:935:11) at Object.exports.spawn (child_process.js:723:9) at module.exports ([...]/node_modules/zbarimg/index.js:19:23) I'm already using listeners for the error and exit event, but non of them getting fired in case of this error. My code: zbarimg = process.spawn('zbarimg', [photo, '-q']); zbarimg.on('error',

Most of the applications we developers write need to be externally parametrized at startup. We pass file paths, pipe names, TCP/IP addresses etc. So far I've been using command line to pass these to the appplication being launched. I had to parse the command line in main and direct the arguments to where they're needed, which is of course a good design , but is hard to maintain for a large number of arguments. Recently I've decided to use the environment variables mechanism. They are global and accessible from anywhere, which is less elegant from architectural point of view, but limits the

im spawning a script that runs for a long time from a web app like this: os.spawnle(os.P_NOWAIT, "../bin/producenotify.py", "producenotify.py", "xx",os.environ) the script is spawned successfully and it runs, but till it gets over i am not able to free the port that is used by the web app, or in other words i am not able to restart the web app. how do i spawn off a process and make it completely independent of the web app? this is on linux os. Alex Martelli As @mark clarified it's a Linux system, the script could easily make itself fully independent, i.e., a daemon , by following this recipe .

I'm trying to get spawn to effect an rm -rf node_modules followed by npm install (on windows 7; n x commands courtesy of a transparently installed CygWin. All n x commands resolve on a commandline just fine). I initially had this using exec , but wanted to catch the stdout/stderr information as it occurred, so I figured I'd use spawn , and rewrote the code to use that. However, that breaks everything. The rm command, rewritten, became this: var spawn = require("child_process").spawn, child = spawn("rm", ["-rf", "node_modules"]); child.stdout.on('data', function (data) { console.log(data

Get this error in windows cmd when I try to build (emulate) Cordova app. D:\dev\Cordova\toDoList>cordova build android Running command: D:\dev\Cordova\toDoList\platforms\android\cordova\build.bat events.js:85 throw er; // Unhandled 'error' event ^ Error: spawn cmd ENOENT at exports._errnoException (util.js:746:11) at Process.ChildProcess._handle.onexit (child_process.js:1046:32) at child_process.js:1137:20 at process._tickCallback (node.js:355:11) ERROR building one of the platforms: Error: D:\dev\Cordova\toDoList\platforms\android\cordova\build.bat: Command failed with exit code 1 You may not

For learning Angular 2, I am trying their tutorial. I am getting an error like this: (node:4796) UnhandledPromiseRejectionWarning: Unhandled promise rejection (r ejection id: 1): Error: spawn cmd ENOENT [1] (node:4796) DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node. js process with a non-zero exit code. I went through different questions and answers in SO but could not find out what an "Unhandled Promise Rejection" is. Can anyone simply explain me what it is and also what Error: spawn cmd ENOENT is