i get this error:
shell script Invocation Error Env: python: No such file or directory
run custom shell script "lint"
PhaseScriptExecution Lint /Users/Nasser/Library/Developer/Xcode/DerivedData/abc-fgspuusakfyzczfehhbduewymfmp/Build/Intermediates/Three20Core.build/Debug-iphonesimulator/Three20Core.build/ Script-668E63EA131A42F500ACE4AB.sh
cd /Users/Nasser/Documents/test2/abc/three20/src/Three20Core
/bin/sh -c /Users/Nasser/Library/Developer/Xcode/DerivedData/abc-fgspuusakfyzczfehhbduewymfmp/Build/ Intermediates/Three20Core.build/Debug-iphonesimulator/Three20Core.build/Script-668E63EA131A42F500ACE4AB. sh
env: python: No such file or directory