Intellij logs are attached bellow. It looks like plugin is trying to create haxe.xml file in root file system which is read only even with sudo permissions. 2021-02-18 07:54:59,660 [150446870] WARN - ...

try Tip of the Day on IDEA, completing the code private FileOutputStream... As I try, Ctrl+Space did not do anything, but typing " f" will show out the recommend variable name "fileOutputSteam". tip ...