Duplicate symbol issue

[yxztj]

I followed the steps, but stuck at linking with error below:

duplicate symbol OBJC_CLASS$_PodsDummy_Pods_Ruguo in:
/Users/jasonyu/Library/Developer/Xcode/DerivedData/Ruguo-grsyzxtiialcjibgdcbnmohgdsed/Build/Intermediates/Pods.build/Debug-iphoneos/Pods-Ruguo.build/Objects-normal/arm64/Pods-Ruguo-dummy.o
/Users/jasonyu/Library/Developer/Xcode/DerivedData/Ruguo-grsyzxtiialcjibgdcbnmohgdsed/Build/Products/Debug-iphoneos/Pods_Ruguo.framework/Pods_Ruguo(Pods-Ruguo-dummy.o)
duplicate symbol OBJC_METACLASS$_PodsDummy_Pods_Ruguo in:
/Users/jasonyu/Library/Developer/Xcode/DerivedData/Ruguo-grsyzxtiialcjibgdcbnmohgdsed/Build/Intermediates/Pods.build/Debug-iphoneos/Pods-Ruguo.build/Objects-normal/arm64/Pods-Ruguo-dummy.o
/Users/jasonyu/Library/Developer/Xcode/DerivedData/Ruguo-grsyzxtiialcjibgdcbnmohgdsed/Build/Products/Debug-iphoneos/Pods_Ruguo.framework/Pods_Ruguo(Pods-Ruguo-dummy.o)
ld: 2 duplicate symbols for architecture arm64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

After removing Pods_Ruguo.framework from Linked Frameworks and Libraries, the error is gone, but then pods targets are not built before main app target, so I'll get another error.
Is there anything I might have missed?

[stepanhruda]

Can you try setting Pods_Ruguo.framework dependency as Optional?

Also, if you delete the DerivedData folder and build, does the build work the first time around? I had to use

if [[ "$CONFIGURATION" == "Debug" ]]; then
  cd "${TARGET_BUILD_DIR}" && rm -rf *.framework && cd -
fi

to prevent build artifact conflicts.

[lucabartoletti]

Same issue for me, I can't fix with the two proposed above.

Even if a clean derived data and build the first time it doesn't work

[nishantdesai]

Facing a similar issue for architecture x86_64. Tried adding the dependency as optional.
I'm not sure where should I be adding the script to prevent build artifact conflicts.
@stepanhruda If you could please help me out regarding where should that script be added.