Can't get rid of Apple LLVM 5.0 Error

Question

It keeps saying:

fatal error: file \'/Applications/Xcode5-DP5.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk/usr/includ

Answer 1

Run this script to delete all relevant files in /Library/Developer/Xcode/DerivedData and /var/folders:

# run with
# ruby reallyCleanXcode.rb
derivedDataFolder = Dir.glob(Dir.home + "/Library/Developer/Xcode/DerivedData/*")
moduleCache = Dir.glob("/var/folders/**/com.apple.DeveloperTools*")
FileUtils.rm_rf derivedDataFolder + moduleCache