Less Compiler is not working in PHPStrom 2018.3

Question

I am using PHPstrom 2018.3 (latest Version). I am getting this error while I am using less to compile through file watcher.

Failed to run File Watcher ', Less'.
The watcher has been disabled.
Error: Invalid executable

Answer 1

', Less' is a curious name for your File Watcher. As on the screenshot, I would expect 'Less'.

The error "Invalid executable" says either the executable is not there, or it is a different type than a program.

I would say that you can check the name of the executable, which is perhaps case-sensitive ("lessc") or perhaps you need to provide the full path ("C:\...").

Answer 2

The error indicates that lessc executable was not found on your %PATH%. Please make sure that you have less installed via npm (npm install -g less) and specify a full path to the installed binary (usually C:\Users\Your.Name\AppData\Roaming\npm\lessc.cmd on Windows) in a Program field.