Unable to load platform at path

Question

When using filemerge to solve HG conflict, I got the following error

FileMerge[18002:707] Unable to load platform at path /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform 

Answer 1

I have the same FileMerge warning in Git. When I look inside Xcode's preferences, I can see that neither the iPhoneSimulator nor the iPhoneOS platforms are installed but the directories do exist when I look into "/Applications/Xcode.app/Contents/Developer/Platforms".

I don't develop for iOS, so I deleted both iPhoneOS.platform and iPhoneSimulator.platform and the warning went away.

If you do need those platforms, try to reinstall them properly from Xcode.

Answer 2

And I tried converting iPhoneSimulator.platform/Info.plist from binary to xml, confirmed that Filemerge doesn't produce the error anymore. Then I converted it back to binary, and still, Filemerge is fine.

$ cd /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform $ sudo plutil -convert xml1 Info.plist $ sudo plutil -convert binary1 Info.plist 

Disclaimer: inspired by @user3761183!