SwiftUI preview canvas compile error: Undefined symbols for architecture x86_64

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Created Jan ’20

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I have a project where I am using Firebase's Firestore and Auth. When I create a SwiftUI view, the preview canvas doesn't work. I get the following error.

Compiling failed: linker command failed with exit code 1 (use -v to see invocation)
failedToBuildDylib: ld: warning: directory not found for option '-F/Applications/Xcode.app/Contents/SharedFrameworks-iphonesimulator'
Undefined symbols for architecture x86_64:
  "___asan_alloca_poison", referenced from:
  +[GDTFLLUploader gzippedData:] in GoogleDataTransportCCTSupport(GDTFLLUploader.o)
  "___asan_allocas_unpoison", referenced from:
  +[GDTFLLUploader gzippedData:] in GoogleDataTransportCCTSupport(GDTFLLUploader.o)
  "___asan_handle_no_return", referenced from:
  -[FIRAuthCredential init] in FirebaseAuth(FIRAuthCredential.o)
  -[FIRAuthCredential prepareVerifyAssertionRequest:] in FirebaseAuth(FIRAuthCredential.o)
  -[FIREmailAuthProvider init] in FirebaseAuth(FIREmailAuthProvider.o)
  -[FIRCollectionReference initWithQuery:] in FirebaseFirestore(FIRCollectionReference.o)

This happens even with the most basic "Hello World" View, where I don't import anything related to Firebase.

Is there anything I can do about this, or can I simply not use the preview canvas in this entire project?

Answered by Loopwerk in 402143022

I managed to fix it by unchecking the "Address sanitizer" option from the scheme's diagnostics options.

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Loopwerk OP

Jan ’20

Accepted Answer

I managed to fix it by unchecking the "Address sanitizer" option from the scheme's diagnostics options.

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