Question

我已将BurstlySDK和TestFlightSDK添加到我的项目中，并且我遇到以下链接器错误：

duplicate symbol _OBJC_CLASS_$_TFApplicationInformation in:
/Users/Andrey/Documents/Helicopter/helicopter_clone/HelicopterClone/BurstlySDK/libBurstly.a(TFApplicationInformation.o)
/Users/Andrey/Documents/Helicopter/helicopter_clone/HelicopterClone/TestFlightSDK2/libTestFlight.a(TFApplicationInformation.o)

引用的TFApplicationInformation只是一个例子。错误消息中提到了大约十个带TF前缀的类。 anybode可以解释它为什么会发生吗？感谢

Answer 1

由于TestFlight SDK与SkyRocket SDK捆绑在一起，因此您无需在libTestFlight.a中进行链接，但您需要在项目中保留TestFlight.h，并在需要使用TestFlight功能时在类中导入该标头。如果您没有TestFlight.h（它应该与TestFlight SDK完全捆绑在一起），您可以在此处下载TestFlight SDK：https://testflightapp.com/sdk/download/

Answer 2

来自Burslty iOS集成指南：

Note: The TestFlight SDK has been bundled with SkyRocket since 2.X

http://quickstart.burstly.com/ios-release-notes

Answer 3

Burstly支持建议删除libTestFlight.a，正如Alex M上面提到的那样，但这让我感到紧张，因为我觉得Burstly为维护TestFlight SDK而不是SkyRocket SDK投入更多资源。不可否认，这种直觉可能是我想象中的一个虚构，但我无法动摇它。

所以，我写了这个脚本。它从libBurstly.a中删除重复的符号并输出一个libBurstly-noTestFlight.a，它可以无冲突地链接。这些路径是我当前项目的硬编码，因此如果您想使用它，您必须根据自己的项目调整脚本。

#!/bin/bash

# I install this script as $(SRCROOT)/scripts/strip_tf_duplicate_symbols, and 
# run it from $(SRCROOT).  
# It looks for libBurstly.a under $(SRCROOT)/Vendors/BurstlySDK.
# Sorry about the hard-coded paths.  I didn't design this to be used in other projects.

if [ -d ./Vendors/BurstlySDK ]
then
    echo "Preparing to strip duplicate symbols from libBurstly.a..."
else
    echo "Creates Vendors/BurstlySDK/libBurstly-noTestFlight.a with duplicate symbols removed."
    echo "Usage: run ./scripts/strip_tf_duplicate_symbols from the Xcode project root"
    exit
fi

cd Vendors/BurstlySDK

echo "Breaking fat libBurstly.a into separate armv7 and i386 libraries..."
xcrun -sdk iphoneos lipo -thin armv7 libBurstly.a -output libBurstly-armv7.a
xcrun -sdk iphoneos lipo -thin armv7s libBurstly.a -output libBurstly-armv7s.a
xcrun -sdk iphoneos lipo -thin i386 libBurstly.a -output libBurstly-i386.a

echo "Extracting .o files into architecture-specific subdirectories..."
mkdir -p libBurstly-armv7 libBurstly-armv7s libBurstly-i386
cd libBurstly-i386
ar -x ../libBurstly-i386.a
cd ..
cd libBurstly-armv7
ar -x ../libBurstly-armv7.a
cd ..
cd libBurstly-armv7s
ar -x ../libBurstly-armv7s.a
cd ..

echo "Removing .o files with duplicate symbols..."
rm  */TF_OpenUDID.o
rm  */TFMessagePack.o
rm  */TestFlight.o
rm  */TFReachability.o
rm */TFNetworkManager.o
rm */TFMemoryMonitor.o
rm */TFDeviceInfo.o
rm */TFCrypto.o
rm */TFApplicationInformation.o


echo "Repacking architecture-specific .a files..."
cd libBurstly-i386
xcrun -sdk iphoneos libtool -static -o ../libBurstly-i386.a *.o 
cd ..
cd libBurstly-armv7
xcrun -sdk iphoneos libtool -static -o ../libBurstly-armv7.a *.o 
cd ..
cd libBurstly-armv7s
xcrun -sdk iphoneos libtool -static -o ../libBurstly-armv7s.a *.o 
cd ..

echo "Recombining thin files into libBurstly-noTestFlight.a"
xcrun -sdk iphoneos lipo -create libBurstly-i386.a libBurstly-armv7.a libBurstly-armv7s.a -output libBurstly-noTestFlight.a

echo "Cleaning up..."
rm -rf libBurstly-armv7 libBurstly-armv7s libBurstly-i386

ls -1 libBurstly-noTestFlight.a
echo "Done"

添加BurstlySDK和TestFlightSDK会导致链接器错误

3 个答案: