osx - Xcode can’t launch project for debugging -


i’m using xcode 4.6.3 build library os x. project includes target called librarytest, command-line app test functionality of library. both library , test app build fine, when try run app quits , debug console shows:

error: failed launch '/users/bdesham/library/developer/xcode/deriveddata/wavelength_and_spectrum_library-byosniusyaoidgdcpzwzuzkitzgv/build/products/debug/librarytest' -- error: host::launchprocess (launch_info) => pid=0, path='/applications/xcode.app/contents/sharedframeworks/lldb.framework/versions/a/resources/debugserver' err = error: ::posix_spawnp (     pid => 98649,     path = '/applications/xcode.app/contents/sharedframeworks/lldb.framework/versions/a/resources/debugserver',     file_actions = 0x10b09e268,     attr = 0x10b09e2a0,     argv = 0x7fe2701377e0,     envp = 0x0 ) err = bad file descriptor (0x00000009) (0x00000009) error: failed launch '/users/bdesham/library/developer/xcode/deriveddata/wavelength_and_spectrum_library-byosniusyaoidgdcpzwzuzkitzgv/build/products/debug/librarytest' -- error: host::launchprocess (launch_info) => pid=0, path='/applications/xcode.app/contents/sharedframeworks/lldb.framework/versions/a/resources/debugserver' err = error: ::posix_spawnp (     pid => 98649,     path = '/applications/xcode.app/contents/sharedframeworks/lldb.framework/versions/a/resources/debugserver',     file_actions = 0x10b09e268,     attr = 0x10b09e2a0,     argv = 0x7fe2701377e0,     envp = 0x0 ) err = bad file descriptor (0x00000009) (0x00000009)

(line breaks added readability.) have xcode 5 dp installed, tried removing xcode 4 , reinstalling mac app store, no dice. deleting deriveddata didn’t either. ideas?

restarting mac seems have fixed this.


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