Nodemon crashes with `Cannot read property 'map' of undefined` #1459

t-zander · 2018-11-22T12:17:56Z

nodemon -v:
"^1.18.6"
node -v:
v10.13.0
Operating system/terminal environment:
ubunutu 18.04
Command you ran:
npm start
in package.json I have "start": "nodemon"

Expected behaviour

It should run and rerun on changes

Actual behaviour

It errors each time I try to save my changes and gives this

/home/user/projects/mongodb-todo/node_modules/nodemon/lib/monitor/run.js:336
spawn('kill', ['-s', sig, child.pid].concat(kids.map(p => p.PID)))
^

TypeError: Cannot read property 'map' of undefined
at /home/user/projects/mongodb-todo/node_modules/nodemon/lib/monitor/run.js:336:58
at /home/user/projects/mongodb-todo/node_modules/pstree.remy/lib/tree.js:53:11
at ChildProcess.onClose (/home/user/projects/mongodb-todo/node_modules/pstree.remy/lib/tree.js:80:9)
at ChildProcess.emit (events.js:182:13)
at maybeClose (internal/child_process.js:962:16)
at Process.ChildProcess._handle.onexit (internal/child_process.js:251:5)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! mongodb-todo@1.0.0 start: nodemon
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the mongodb-todo@1.0.0 start script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR! /home/user/.npm/_logs/2018-11-22T12_10_04_952Z-debug.log

Steps to reproduce

install express, morgan, nodemon.
run npm start
then save changes in app.js

Here is package.json
{
"name": "mongodb-todo",
"version": "1.0.0",
"description": "",
"main": "./app.js",
"scripts": {
"test": "echo "Error: no test specified" && exit 1",
"start": "nodemon"
},
"author": "",
"license": "ISC",
"dependencies": {
"express": "^4.16.4",
"morgan": "^1.9.1",
"nodemon": "^1.18.6"
}
}

If applicable, please append the --dump flag on your command and include the output here ensuring to remove any sensitive/personal details or tokens.

The text was updated successfully, but these errors were encountered:

lourenco · 2018-11-22T12:27:57Z

Node 11 same issue :(

sysrun · 2018-11-22T12:41:58Z

#1456

Evilu · 2018-11-22T12:55:51Z

same here with macOS 10.13.6
node 10.13

sysrun · 2018-11-22T12:56:51Z

Guys, instead of posting new issues: Just read/search for already open/closed ones...

cooliean · 2018-11-23T08:24:04Z

nodemon dependencies pstree.remy
check your package-lock.json
if use "pstree.remy": "1.1.1",
will has this error
use npm i pstree.remy@1.1.0 -D will fix this error
I hope I can help you. ：）

remy · 2018-11-23T21:18:35Z

Acknowledging this.

I've been trying to work on a fix, but work life and personal life has been keeping me away from coding on this.

The issue is in https://github.com/remy/pstree - and although I fixed the core of this issue, there's a new issue that leaves processes running in the background instead of killing them (which is exactly what pstree intends to address).

The tests pass fine in a mac environment (my dev machine), but not in linux - which travis runs in. I am able to replicate with docker (this branch: https://github.com/remy/nodemon/tree/fix/new-pstree ) but I don't know what's leaving the process in the background (it's definitely that pstree.remy isn't returning all the PIDs properly).

t-zander · 2018-11-24T10:21:19Z

Well, I deleted the folder and created everything and it workwd okay...

Arti3DPlayer · 2018-11-25T09:50:41Z

the same issue, pstree.remy@1.1.2

corinnekunze · 2018-11-25T16:46:13Z

I'm having a similar issue - different error message but nodemon is crashing upon attempting to restart.
Node versions: v10.13.0 and v11.2.0
Nodemon version: 1.18.6 and 1.18.3

[nodemon] 1.18.6
[nodemon] to restart at any time, enter `rs`
[nodemon] watching: *.*
[nodemon] starting `node first-app.js`
rs
/Users/ckunze/src/prof_dev/node-tutorial/node_modules/pstree.remy/lib/tree.js:70
  ps.stdout.on('data', function(data) {
            ^

TypeError: Cannot read property 'on' of undefined
    at buildProcessTree (/Users/ckunze/src/prof_dev/node-tutorial/node_modules/pstree.remy/lib/tree.js:70:13)
    at /Users/ckunze/src/prof_dev/node-tutorial/node_modules/pstree.remy/lib/tree.js:91:7
    at Array.forEach (<anonymous>)
    at ChildProcess.onClose (/Users/ckunze/src/prof_dev/node-tutorial/node_modules/pstree.remy/lib/tree.js:86:27)
    at ChildProcess.emit (events.js:182:13)
    at maybeClose (internal/child_process.js:978:16)
    at Socket.stream.socket.on (internal/child_process.js:395:11)
    at Socket.emit (events.js:182:13)
    at Pipe._handle.close (net.js:616:12)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! node-tutorial@1.0.0 start: `nodemon first-app.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the node-tutorial@1.0.0 start script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

Is this related or should I start another issue?

actraiser · 2018-11-26T10:55:03Z

I am able to replicate with docker (this branch: https://github.com/remy/nodemon/tree/fix/new-pstree ) but I don't know what's leaving the process in the background (it's definitely that pstree.remy isn't returning all the PIDs properly).

Experiencing the same problem that nodemon will report EADDRINUSE when reloading a watched file when run in a linux environment via Docker. In my case, I use the latest node-alpine v10.13.0 image.

-act

jordie23 · 2018-11-26T22:58:51Z

@remy Can you please lock the nodemon dependency on pstree back to 1.1.0 ? Until you can release a 1.1.3 that fixes these issues?

remy · 2018-11-27T08:45:35Z

Fixed and deployed in latest release (going live right now)

oliverbot · 2018-11-27T08:45:38Z

Thanks for raising this issue, and hopefully you're happy with @remy's fix. If you'd like to support this project, you can do just that through the open collective https://opencollective.com/nodemon/donate or at the very least, starring this project would give me @remy a little smile ❤️

A fix to avoid 'crashes with 'Cannot read property 'map' of undefined' remy/nodemon#1459

ajay2323 · 2019-10-31T09:39:40Z

Only One Solutiion try this: "npm cache clean --force"

pretti24 · 2020-07-21T09:43:19Z

Error: listen EADDRINUSE: address already in use :::3000
at Server.setupListenHandle [as _listen2] (net.js:1280:14)
at listenInCluster (net.js:1328:12)
at Server.listen (net.js:1415:7)
at Function.listen (/home/priti/Desktop/Calculator/node_modules/express/lib/application.js:618:24)
at Object. (/home/priti/Desktop/Calculator/calculator.js:9:5)
at Module._compile (internal/modules/cjs/loader.js:778:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:789:10)
at Module.load (internal/modules/cjs/loader.js:653:32)
at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
at Function.Module._load (internal/modules/cjs/loader.js:585:3)
Emitted 'error' event at:
at emitErrorNT (net.js:1307:8)
at process._tickCallback (internal/process/next_tick.js:63:19)
at Function.Module.runMain (internal/modules/cjs/loader.js:834:11)
at startup (internal/bootstrap/node.js:283:19)
at bootstrapNodeJSCore (internal/bootstrap/node.js:623:3)
[nodemon] app crashed - waiting for file changes before starting...

pretti24 · 2020-07-21T09:44:02Z

How to fix this??

ajay2323 · 2020-07-21T10:15:27Z

How to fix this??

Try this "npm cache clean --force"

pouriamoosavi · 2020-08-07T12:06:09Z

I know it seems silly but I think it could be a problem with maximum number of watched files in OS. I faced the same problem and tried all above solutions, none works for me. but then I understand sometimes (in some runs) nodemon complains about maximum file watch. so I ignored some directories and now it does not have that problem anymore.

Fengxusunny · 2020-09-07T04:07:09Z

Try to use (npm install nodemon).

ghost · 2020-09-07T20:03:39Z

internal/modules/cjs/loader.js:968
throw err;
^

Error: Cannot find module 'C:\Users\omnamashivaya\OneDrive\Desktop\Wiki_API\index.js'
at Function.Module._resolveFilename (internal/modules/cjs/loader.js:965:15)
at Function.Module._load (internal/modules/cjs/loader.js:841:27)
at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:71:12)
at internal/main/run_main_module.js:17:47 {
code: 'MODULE_NOT_FOUND',
requireStack: []
}

ghost · 2020-09-07T20:03:57Z

how fix this

ghost · 2020-09-07T20:04:15Z

pls I need help

goyal-Dushi · 2020-12-17T14:26:34Z

npm ERR! code EACCES
npm ERR! syscall access
npm ERR! path /usr/local/lib
npm ERR! errno -13
npm ERR! Error: EACCES: permission denied, access '/usr/local/lib'
npm ERR! { [Error: EACCES: permission denied, access '/usr/local/lib']
npm ERR! stack:
npm ERR! 'Error: EACCES: permission denied, access '/usr/local/lib'',
npm ERR! errno: -13,
npm ERR! code: 'EACCES',
npm ERR! syscall: 'access',
npm ERR! path: '/usr/local/lib' }
npm ERR!
npm ERR! The operation was rejected by your operating system.
npm ERR! It is likely you do not have the permissions to access this file as the current user
npm ERR!
npm ERR! If you believe this might be a permissions issue, please double-check the
npm ERR! permissions of the file and its containing directories, or try running
npm ERR! the command again as root/Administrator.

npm ERR! A complete log of this run can be found in:
npm ERR! /home/dushyant/.npm/_logs/2020-12-17T12_10_14_491Z-debug.log

CMD : sudo npm install -g nodemon

After using the above command, it worked just fine.

remy changed the title ~~Nodemon crushes every time I save changes~~ Nodemon crashes with Cannot read property 'map' of undefined Nov 23, 2018

remy added bug confirmed bug help wanted labels Nov 23, 2018

remy mentioned this issue Nov 27, 2018

Insecure dependency #1469

Closed

remy closed this as completed Nov 27, 2018

remy mentioned this issue Nov 27, 2018

nodemon do not kill older process. #1435

Closed

bot-linagora pushed a commit to linagora/linshare-editor-onlyoffice that referenced this issue Dec 11, 2018

Bump nodemon to version 1.18.8

9e8a4ef

A fix to avoid 'crashes with 'Cannot read property 'map' of undefined' remy/nodemon#1459

Repository owner locked as resolved and limited conversation to collaborators Dec 17, 2020

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Nodemon crashes with `Cannot read property 'map' of undefined` #1459

Nodemon crashes with `Cannot read property 'map' of undefined` #1459

t-zander commented Nov 22, 2018

lourenco commented Nov 22, 2018

sysrun commented Nov 22, 2018

Evilu commented Nov 22, 2018

sysrun commented Nov 22, 2018

cooliean commented Nov 23, 2018 •

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remy commented Nov 23, 2018

t-zander commented Nov 24, 2018

Arti3DPlayer commented Nov 25, 2018

corinnekunze commented Nov 25, 2018

actraiser commented Nov 26, 2018

jordie23 commented Nov 26, 2018

remy commented Nov 27, 2018

oliverbot bot commented Nov 27, 2018

ajay2323 commented Oct 31, 2019

pretti24 commented Jul 21, 2020

pretti24 commented Jul 21, 2020

ajay2323 commented Jul 21, 2020

pouriamoosavi commented Aug 7, 2020

Fengxusunny commented Sep 7, 2020

ghost commented Sep 7, 2020

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goyal-Dushi commented Dec 17, 2020 •

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Nodemon crashes with Cannot read property 'map' of undefined #1459

Nodemon crashes with Cannot read property 'map' of undefined #1459

Comments

t-zander commented Nov 22, 2018

Expected behaviour

Actual behaviour

Steps to reproduce

lourenco commented Nov 22, 2018

sysrun commented Nov 22, 2018

Evilu commented Nov 22, 2018

sysrun commented Nov 22, 2018

cooliean commented Nov 23, 2018 • edited Loading

remy commented Nov 23, 2018

t-zander commented Nov 24, 2018

Arti3DPlayer commented Nov 25, 2018

corinnekunze commented Nov 25, 2018

actraiser commented Nov 26, 2018

jordie23 commented Nov 26, 2018

remy commented Nov 27, 2018

oliverbot bot commented Nov 27, 2018

ajay2323 commented Oct 31, 2019

pretti24 commented Jul 21, 2020

pretti24 commented Jul 21, 2020

ajay2323 commented Jul 21, 2020

pouriamoosavi commented Aug 7, 2020

Fengxusunny commented Sep 7, 2020

ghost commented Sep 7, 2020

ghost commented Sep 7, 2020

ghost commented Sep 7, 2020

goyal-Dushi commented Dec 17, 2020 • edited Loading

Nodemon crashes with `Cannot read property 'map' of undefined` #1459

Nodemon crashes with `Cannot read property 'map' of undefined` #1459

cooliean commented Nov 23, 2018 •

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