xcode - Command ...swiftc failed with exit code 1 -

xcode - Command ...swiftc failed with exit code 1 -

i stuck error while, , none of solutions i've found seems work (at least, in case). here total error log:

compileswiftsources normal x86_64 com.apple.xcode.tools.swift.compiler cd "/users/user/documents/music kit a" /applications/xcode.app/contents/developer/toolchains/xcodedefault.xctoolchain/usr/bin/swiftc -target x86_64-apple-macosx10.10 -module-name music_kit_a -onone -sdk /applications/xcode.app/contents/developer/platforms/macosx.platform/developer/sdks/macosx10.10.sdk -g -module-cache-path /users/user/library/developer/xcode/deriveddata/modulecache -i /users/user/library/developer/xcode/deriveddata/music_kit_a-cimwnaollginmxefzprqiioyrhfl/build/products/debug -f /users/user/library/developer/xcode/deriveddata/music_kit_a-cimwnaollginmxefzprqiioyrhfl/build/products/debug -c -j4 /users/user/documents/music\ kit\ a/music\ kit\ a/appdelegate.swift /users/user/documents/music\ kit\ a/music\ kit\ a/main.swift -output-file-map /users/user/library/developer/xcode/deriveddata/music_kit_a-cimwnaollginmxefzprqiioyrhfl/build/intermediates/music\ kit\ a.build/debug/music\ kit\ a.build/objects-normal/x86_64/music\ kit\ a-outputfilemap.json -parseable-output -serialize-diagnostics -emit-dependencies -emit-module -emit-module-path /users/user/library/developer/xcode/deriveddata/music_kit_a-cimwnaollginmxefzprqiioyrhfl/build/intermediates/music\ kit\ a.build/debug/music\ kit\ a.build/objects-normal/x86_64/music_kit_a.swiftmodule -xcc -i/users/user/library/developer/xcode/deriveddata/music_kit_a-cimwnaollginmxefzprqiioyrhfl/build/intermediates/music\ kit\ a.build/debug/music\ kit\ a.build/swift-overrides.hmap -xcc -iquote -xcc /users/user/library/developer/xcode/deriveddata/music_kit_a-cimwnaollginmxefzprqiioyrhfl/build/intermediates/music\ kit\ a.build/debug/music\ kit\ a.build/music\ kit\ a-generated-files.hmap -xcc -i/users/user/library/developer/xcode/deriveddata/music_kit_a-cimwnaollginmxefzprqiioyrhfl/build/intermediates/music\ kit\ a.build/debug/music\ kit\ a.build/music\ kit\ a-own-target-headers.hmap -xcc -i/users/user/library/developer/xcode/deriveddata/music_kit_a-cimwnaollginmxefzprqiioyrhfl/build/intermediates/music\ kit\ a.build/debug/music\ kit\ a.build/music\ kit\ a-all-target-headers.hmap -xcc -iquote -xcc /users/user/library/developer/xcode/deriveddata/music_kit_a-cimwnaollginmxefzprqiioyrhfl/build/intermediates/music\ kit\ a.build/debug/music\ kit\ a.build/music\ kit\ a-project-headers.hmap -xcc -i/users/user/library/developer/xcode/deriveddata/music_kit_a-cimwnaollginmxefzprqiioyrhfl/build/products/debug/include -xcc -i/applications/xcode.app/contents/developer/toolchains/xcodedefault.xctoolchain/usr/include -xcc -i/users/user/library/developer/xcode/deriveddata/music_kit_a-cimwnaollginmxefzprqiioyrhfl/build/intermediates/music\ kit\ a.build/debug/music\ kit\ a.build/derivedsources/x86_64 -xcc -i/users/user/library/developer/xcode/deriveddata/music_kit_a-cimwnaollginmxefzprqiioyrhfl/build/intermediates/music\ kit\ a.build/debug/music\ kit\ a.build/derivedsources -xcc -ddebug=1 -emit-objc-header -emit-objc-header-path /users/user/library/developer/xcode/deriveddata/music_kit_a-cimwnaollginmxefzprqiioyrhfl/build/intermediates/music\ kit\ a.build/debug/music\ kit\ a.build/objects-normal/x86_64/music_kit_a-swift.h command /applications/xcode.app/contents/developer/toolchains/xcodedefault.xctoolchain/usr/bin/swiftc failed exit code 1

what i've tried:

clean project

comment lastly changes

create new project , transfer code

when create new project, error goes away, 1 saying there implicit entry point main. searched whole project main function, nil showed up. whole code here, if it's of use.

in case code causes error:

processbtn.settitlecolor(.whitecolor(), forstate: .normal)

but if add together uicolor goes fine:

processbtn.settitlecolor(uicolor.whitecolor(), forstate: .normal)

maybe have similar errors in code.

xcode swift xcode6