Grunt watch error - Waiting Fatal error watch ENOSPC

Question

Why do I get the Waiting   Fatal error  watch ENOSPC when I run the watch task    How do I solve this issue

User · Answer

In my case it was related to vs-code running on my Linux machine. I ignored a warning which popped up about file watcher bla bla. The solution is on the vs-code docs page for linux https://code.visualstudio.com/docs/setup/linux#_visual-studio-code-is-unable-to-watch-for-file-changes-in-this-large-workspace-error-enospc

The solution is almost same (if not same) as the accepted answers, just has more explanation for anyone who gets here after running into the issues from vs-code.

User · Answer

After trying grenade s answer you may use a temporary fix   sudo bash -c  echo 524288  gt   proc sys fs inotify max user watches    This does the same thing as kds s answer  but without persisting the changes  This is useful if the error just occurs after some uptime of your system

User · Answer

I ran into this error after my client PC crashed  the jest --watch command I was running on the server persisted  and I tried to run jest --watch again   The addition to  etc sysctl conf described in the answers above worked around this issue  but it was also important to find my old process via ps aux   grep node and kill it

User · Answer

Any time you need to run sudo something     to fix something  you should be pausing to think about what s going on  While the accepted answer here is perfectly valid  it s treating the symptom rather than the problem  Sorta the equivalent of buying bigger saddlebags to solve the problem of  error  cannot load more garbage onto pony  Pony has so much garbage already loaded  that pony is fainting with exhaustion   An alternative  perhaps comparable to taking excess garbage off of pony and placing in the dump   is to run   npm dedupe   Then go congratulate yourself for making pony happy

User · Answer

In my case I found that I have an aggressive plugin for Vim  just restarted it

User · Answer

To find out who s making inotify instances  try this command  source    for foo in  proc   fd    do readlink -f  foo  done   grep inotify   sort   uniq -c   sort -nr   Mine looked like this    25  proc 2857 fd anon inode inotify   9  proc 2880 fd anon inode inotify   4  proc 1375 fd anon inode inotify   3  proc 1851 fd anon inode inotify   2  proc 2611 fd anon inode inotify   2  proc 2414 fd anon inode inotify   1  proc 2992 fd anon inode inotify   Using ps -p 2857  I was able to identify process 2857 as sublime text   Only after closing all sublime windows was I able to run my node script

User · Answer

After doing some research found the solution  Run the below command   echo fs inotify max user watches 524288   sudo tee -a  etc sysctl conf  amp  amp  sudo sysctl -p   For Arch Linux add this line to  etc sysctl d 99-sysctl conf   fs inotify max user watches 524288

[node.js] Grunt watch error - Waiting...Fatal error: watch ENOSPC

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