This workspace includes a library (framework) project and a client (app) project.
Framework includes SwiftyGif as a Carthage dependency.
At startup, app exercises framework through its public API.
Some details:
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Issue shows up at build time.
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Issue does not show up when building for a simulated device. It shows with Generic iOS Device instead.
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Issue shows up even if no SwiftyGif code is exercised at all. It's enough to add framework to link binary phase. When framework is removed from linked binaries list, issue goes away.
- Open workspace in Xcode
- Make sure
My Appschema is selected, as well asGeneric iOS Device - Build product
Product builds fine, with no errors.
Product build fails. App reports following error from bitcode_strip: string table not at the end of the file (can't be processed) in file. Here's the full output (derived data and toolchain directories omitted for brevity):
PBXCp ...derivedData/Build/Products/Debug-iphoneos/MyLib.framework ...derivedData/Build/Products/Debug-iphoneos/MyApp.app/Frameworks/MyLib.framework (in target: MyApp) cd /Users/braincrumbz/Documents/Projects/Lab/Swift/BitcodeIssue/MyApp builtin-copy -exclude .DS_Store -exclude CVS -exclude .svn -exclude .git -exclude .hg -exclude Headers -exclude PrivateHeaders -exclude Modules -exclude *.tbd -bitcode-strip replace-with-marker -bitcode-strip-tool ...toolchain/bitcode_strip -resolve-src-symlinks ...derivedData/Build/Products/Debug-iphoneos/MyLib.framework ...derivedData/Build/Products/Debug-iphoneos/MyApp.app/Frameworks
...toolchain/bitcode_strip ...derivedData/Build/Products/Debug-iphoneos/MyLib.framework/MyLib -m -o ...derivedData/Build/Products/Debug-iphoneos/MyApp.app/Frameworks/MyLib.framework/MyLib ...toolchain/bitcode_strip ...derivedData/Build/Products/Debug-iphoneos/MyLib.framework/SwiftyGif.framework.dSYM/Contents/Resources/DWARF/SwiftyGif -m -o ...derivedData/Build/Products/Debug-iphoneos/MyApp.app/Frameworks/MyLib.framework/SwiftyGif.framework.dSYM/Contents/Resources/DWARF/SwiftyGif ...toolchain/bitcode_strip: string table not at the end of the file (can't be processed) in file: ...derivedData/Build/Products/Debug-iphoneos/MyLib.framework/SwiftyGif.framework.dSYM/Contents/Resources/DWARF/SwiftyGif (for architecture i386)error: bitcode_strip ...derivedData/Build/Products/Debug-iphoneos/MyLib.framework/SwiftyGif.framework.dSYM/Contents/Resources/DWARF/SwiftyGif: ...toolchain/bitcode_strip exited with 1
A fix was found for the issue, thanks to posts like this. The main gist is to add a user-defined build setting named STRIP_BITCODE_FROM_COPIED_FILES and set that to NO. See also commit with comment fix(app): fix bitcode_strip issue.