[Cocos2d-x 3.0] Undefined symbols error

secredut

Hey guys, I'm using cocos2d-x 3.0 with Xcode5.1 and tried to integrate spine runtime to use skinning feature.

First, I deleted all the files in '../cocos/editor-support/spine' folder except 'Android.mk'file, and I copied all the files in 'spine-c/../include', 'spine-c/../src' and 'spine-cocos2dx/3.0/src' to my '.../cocos/editor-support/spine' folder. after that, I changed 'Android.mk'file.

However, when I tried to load my spine asset with "spine::SkeletonAnimation::createWithFile", there is 'Apple Match-O Linker Error' like below.

Ld /Users/kangsungku/Library/Developer/Xcode/DerivedData/SSMark2_30-dhorqfqzcojoeabrwdcdkdxgsxwd/Build/Products/Debug-iphoneos/SSMark2_30\ iOS.app/SSMark2_30\ iOS normal arm64
    cd /Users/kangsungku/Work/SSMark2_30/proj.ios_mac
    export IPHONEOS_DEPLOYMENT_TARGET=5.1.1
    export PATH="/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin:/Applications/Xcode.app/Contents/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin"
    /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++ -arch arm64 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.1.sdk -L/Users/kangsungku/Library/Developer/Xcode/DerivedData/SSMark2_30-dhorqfqzcojoeabrwdcdkdxgsxwd/Build/Products/Debug-iphoneos -F/Users/kangsungku/Library/Developer/Xcode/DerivedData/SSMark2_30-dhorqfqzcojoeabrwdcdkdxgsxwd/Build/Products/Debug-iphoneos -filelist /Users/kangsungku/Library/Developer/Xcode/DerivedData/SSMark2_30-dhorqfqzcojoeabrwdcdkdxgsxwd/Build/Intermediates/SSMark2_30.build/Debug-iphoneos/SSMark2_30\ iOS.build/Objects-normal/arm64/SSMark2_30\ iOS.LinkFileList -dead_strip -stdlib=libc++ -fobjc-link-runtime -miphoneos-version-min=5.1.1 /Users/kangsungku/Library/Developer/Xcode/DerivedData/SSMark2_30-dhorqfqzcojoeabrwdcdkdxgsxwd/Build/Products/Debug-iphoneos/libbox2d\ iOS.a /Users/kangsungku/Library/Developer/Xcode/DerivedData/SSMark2_30-dhorqfqzcojoeabrwdcdkdxgsxwd/Build/Products/Debug-iphoneos/libchipmunk\ iOS.a /Users/kangsungku/Library/Developer/Xcode/DerivedData/SSMark2_30-dhorqfqzcojoeabrwdcdkdxgsxwd/Build/Products/Debug-iphoneos/libcocos2dx\ iOS.a /Users/kangsungku/Library/Developer/Xcode/DerivedData/SSMark2_30-dhorqfqzcojoeabrwdcdkdxgsxwd/Build/Products/Debug-iphoneos/libcocos2dx-extensions\ iOS.a /Users/kangsungku/Library/Developer/Xcode/DerivedData/SSMark2_30-dhorqfqzcojoeabrwdcdkdxgsxwd/Build/Products/Debug-iphoneos/libCocosDenshion\ iOS.a -framework CoreMotion -framework Foundation -framework UIKit -framework CoreGraphics -framework OpenGLES -lz -framework QuartzCore -framework OpenAL -framework AVFoundation -framework AudioToolbox -Xlinker -dependency_info -Xlinker /Users/kangsungku/Library/Developer/Xcode/DerivedData/SSMark2_30-dhorqfqzcojoeabrwdcdkdxgsxwd/Build/Intermediates/SSMark2_30.build/Debug-iphoneos/SSMark2_30\ iOS.build/Objects-normal/arm64/SSMark2_30\ iOS_dependency_info.dat -o /Users/kangsungku/Library/Developer/Xcode/DerivedData/SSMark2_30-dhorqfqzcojoeabrwdcdkdxgsxwd/Build/Products/Debug-iphoneos/SSMark2_30\ iOS.app/SSMark2_30\ iOS

Undefined symbols for architecture arm64:
  "spine::SkeletonAnimation::createWithFile(char const*, char const*, float)", referenced from:
      FBGameLayer::initLayer() in FBGameLayer.o
ld: symbol(s) not found for architecture arm64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

I've also tried it with Cocos2d-x 3.1rc0, and found out there is a matrix problem which seems fixed if I change the 'Matrix' to 'kmMat4'. However, even I fixed the matrix problem, I faced same above linker error again.

Since I was just an artist and very noob to the programming, there might be some mistake. So, It would really glad if somebody could let me know what is the problem.

Thanks,

Nate

A linker problem means the include files were found but when it comes time to link, the object files were not. You can see spine::SkeletonAnimation::createWithFile is in SkeletonAnimation.cpp, so make sure that is getting compiled.

secredut

Thanks! It works!

Johnny_Herbert

Hello Guys! Could you hall me too? I have the same problem, but i delete Android.mk cause I do not need android version yet. Trying run project I get

Undefined symbols for architecture x86_64:
"spine::SkeletonAnimation::createWithFile(char const, char const, float)", referenced from:
HelloWorld::init() in HelloWorldScene.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Unfortunately, I can't understand what I have to do to fix it. What is "make sure that is getting compiled"? How can I do it?

Søren

I'm by no means an expert on these matters, but maybe this thread http://discuss.cocos2d-x.org/t/xcode-5- ... error/9631 is related.

Johnny_Herbert

Unfortunately, that decision is not helpful 🙁((
I use latest version of cocos2d-x. It has built-in spine runtime v1.1, which works correctly, but I don't want to use it. Version 2.1 from esoteric software from github I can't use because these errors appears. I am at full stop 🙁(((

Søren

I'm afraid I don't know what could be the cause of it, I'll let Nate know about the problem you're having, maybe he can help out. Sorry 🙁

Johnny_Herbert

Thank you, Shiu

Nate

I've merged some commits into spine-cocos2dx from Ricardo Quesada, author of cocos2d who is now working on cocos2d-x. I assumed they were good, but I need to review them and possibly fix up some things. You could try grabbing commit e648aa66ae77da3f4f345bf46336002baada05b4, which is the one just before those commits.

"make sure that is getting compiled" means to make sure that the specific file in the latest runtime is being compiled, not the old one. Your failure is with the linker, it is unable to find object files that contain some methods. This means the correct cpp file isn't being compiled.

Johnny_Herbert

Thank you Nate! I am pleasured, that you are so patient. I will read thread, you point.
Also I have plan, which I use 20 years in my programming career. I will replace old spine runtime version 1.1 by v2.1 step by step and will find critical moment,. So I will find fixing method and write here what to do for other people like me, who want to upgrade spine runtime version directly inside cocos2d-x.
I hope I will have success