Build macOS Example Embedder failed in Xcode 10

[chenyuantao]

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Ld /Users/Tao/Library/Developer/Xcode/DerivedData/Example_Embedder-cyebqnokskymrzftfrnhdolxhaqu/Build/Products/Debug/Example\ Embedder.app/Contents/MacOS/Example\ Embedder normal x86_64 (in target: Example Embedder)
cd /Users/Tao/development/flutter-desktop-embedding/macos/example
export MACOSX_DEPLOYMENT_TARGET=10.13
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -arch x86_64 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk -L/Users/Tao/Library/Developer/Xcode/DerivedData/Example_Embedder-cyebqnokskymrzftfrnhdolxhaqu/Build/Products/Debug -F/Users/Tao/Library/Developer/Xcode/DerivedData/Example_Embedder-cyebqnokskymrzftfrnhdolxhaqu/Build/Products/Debug -filelist /Users/Tao/Library/Developer/Xcode/DerivedData/Example_Embedder-cyebqnokskymrzftfrnhdolxhaqu/Build/Intermediates.noindex/Example\ Embedder.build/Debug/Example\ Embedder.build/Objects-normal/x86_64/Example\ Embedder.LinkFileList -Xlinker -rpath -Xlinker @executable_path/../Frameworks -mmacosx-version-min=10.13 -Xlinker -object_path_lto -Xlinker /Users/Tao/Library/Developer/Xcode/DerivedData/Example_Embedder-cyebqnokskymrzftfrnhdolxhaqu/Build/Intermediates.noindex/Example\ Embedder.build/Debug/Example\ Embedder.build/Objects-normal/x86_64/Example\ Embedder_lto.o -Xlinker -export_dynamic -Xlinker -no_deduplicate -fobjc-link-runtime -L/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/macosx -Xlinker -add_ast_path -Xlinker /Users/Tao/Library/Developer/Xcode/DerivedData/Example_Embedder-cyebqnokskymrzftfrnhdolxhaqu/Build/Intermediates.noindex/Example\ Embedder.build/Debug/Example\ Embedder.build/Objects-normal/x86_64/Example_Embedder.swiftmodule /Users/Tao/Library/Developer/Xcode/DerivedData/Example_Embedder-cyebqnokskymrzftfrnhdolxhaqu/Build/Products/Debug/FlutterEmbedderMac.framework/FlutterEmbedderMac -Xlinker -dependency_info -Xlinker /Users/Tao/Library/Developer/Xcode/DerivedData/Example_Embedder-cyebqnokskymrzftfrnhdolxhaqu/Build/Intermediates.noindex/Example\ Embedder.build/Debug/Example\ Embedder.build/Objects-normal/x86_64/Example\ Embedder_dependency_info.dat -o /Users/Tao/Library/Developer/Xcode/DerivedData/Example_Embedder-cyebqnokskymrzftfrnhdolxhaqu/Build/Products/Debug/Example\ Embedder.app/Contents/MacOS/Example\ Embedder

Undefined symbols for architecture x86_64:
"OBJC_CLASS$_FLEColorPanelPlugin", referenced from:
objc-class-ref in ExampleWindow.o
"OBJC_CLASS$_FLEFileChooserPlugin", referenced from:
objc-class-ref in ExampleWindow.o
"OBJC_CLASS$_FLEMenubarPlugin", referenced from:
objc-class-ref in ExampleWindow.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

[stuartmorgan-g]

Is this the first/only build error? Those classes come from frameworks that should have been built by the dependent projects.

[stuartmorgan-g]

Closing due to lack of response. If you can provide the requested information, I can re-open the bug.

[GregorySech]

This happened to me too, I'm not an xcode expert but I've simply Product > Clean Build Folder and then Product > Build For > Running and it built successfully.

edit: grammar and directions

[stuartmorgan-g]

Sounds like there must be a dependency issue somewhere. Reopening to investigate.

[kermiedefrog]

Had the same issue but did the same as GregorySech and things worked nicely ... I did try and compile from an older check out of this code tree, this may have caused some build issues within this latest code where the code has been moved about a bit ..
So as above Product -> Clean Build Folder; Product > Build for > Running ... and then Run Example Embedder and all is good ...
Good project ...

[stuartmorgan-g]

I believe this is fixed by the PR I just landed. If anyone still sees it after that, please comment!