-
A recent Cygwin upgrade left me ripping my hair out, because none of my npm or grunt commands would work. They spat out the error
Unknown system errno 203
Helpful, right?
The fix
In your Cygwin
~/.bash_profile
file (create it andchmod 755 .bash_profile
if it doesn't exist):export TMP=/tmp export TEMP=$TMP
This did the trick for me. Special thanks to this github comment.