I've reinstalled my Windows lately, but IntelliJ was on another drive and was left as-is. It works just fine, but it wouldn't allow me to install any sort of plug-ins, outputting the error after asking to restart it:
The cause: java.nio.file.FileSystemException: G:\jet_brains\apps\IDEA-C\ch-0\231.8109.175.plugins: Unable to determine if root directory exists
I tried to set a new plugin installation path in idea.properties, but it failed:
idea.plugins.path = "E:\programming\_tools\jetbrains\plugins\intellij"
The funny thing is, to my knowledge, the mentioned G drive in the error message never even existed on my PC. What could be the cause of this strange behavior and how could I amend it?
Please install a new copy of IDE, and use the menu File > Manage IDE Settings > Import Settings to import settings from the old IDE directory.