Swift 2 / iOS 9 - libz.dylib not found

swift google-analytics swift2 ios9 google-analytics-sdk
Daniel K. picture Daniel K. · Jun 13, 2015 · Viewed 44.1k times · Source

I'm using some external codes from google in my new Swift 2.0 project that required "libz.dylib" in earlier versions. After updating to the new Xcode / the new SDK.

Xcode is now unable to import the libz.dylib and throws some errors

Undefined symbols for architecture i386: "_deflate", referenced from: +[GAICompressionUtil gai_dataByCompressingBytes:length:compressionLevel:mode:] in libGoogleAnalyticsServices.a(GAICompressionUtil.o) "_deflateEnd", referenced from: +[GAICompressionUtil gai_dataByCompressingBytes:length:compressionLevel:mode:] in libGoogleAnalyticsServices.a(GAICompressionUtil.o) "deflateInit2", referenced from: +[GAICompressionUtil gai_dataByCompressingBytes:length:compressionLevel:mode:] in libGoogleAnalyticsServices.a(GAICompressionUtil.o) "_inflate", referenced from: +[GAICompressionUtil gai_dataByInflatingBytes:length:isRawData:] in libGoogleAnalyticsServices.a(GAICompressionUtil.o) "_inflateEnd", referenced from: +[GAICompressionUtil gai_dataByInflatingBytes:length:isRawData:] in libGoogleAnalyticsServices.a(GAICompressionUtil.o) "inflateInit2", referenced from: +[GAICompressionUtil gai_dataByInflatingBytes:length:isRawData:] in libGoogleAnalyticsServices.a(GAICompressionUtil.o) ld: symbol(s) not found for architecture i386 clang: error: linker command failed with exit code 1 (use -v to see invocation)

When looking through the available packages in the "build phase" settings I can find "libz.tbd" which seems to be the replacement for the libz.dylib. When importing this lib the linker error stays the same but I get this additional warning:

warning: skipping file '/Applications/Xcode-beta.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator9.0.sdk/usr/lib/libz.tbd' (unexpected file type 'text' in Frameworks & Libraries build phase)

What to do?

Answer

Guitz picture Guitz · Jun 13, 2015

I had the same problem. I found some kind of way around.

  1. Go to Build Phases >Link Binary with Librairies > + > Add other
  2. Once in the file selection window do "CMD"+Shift+G (Go to folder) and type /usr/lib/
  3. From /usr/lib you can add : libz.dylib and more...
  4. Compile and have fun

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