Build failed with generateAudioPlugin in Matlab 2020a

Hello,

I am using Matlab r2020a with the audio toolbox. I have a very basic plugin that is validated, but when I run generateAudioPlugin the build fails.

The error report is incredibly long (100+ lines), but it mostly looks like this excerpt:

CompileC
/var/folders/c4/94nvs2kx1ts1knpwm3xs5b900000gn/T/tp435d986b_f7be_460e_aa31_7ccf81fece40/Builds/MacOSX/build/StereoWidth.build/Release/StereoWidth\
-\ Shared\ Code.build/Objects-normal/x86_64/include_juce_events.o
/var/folders/c4/94nvs2kx1ts1knpwm3xs5b900000gn/T/tp435d986b_f7be_460e_aa31_7ccf81fece40/JuceLibraryCode/include_juce_events.mm normal
x86_64 objective-c++ com.apple.compilers.llvm.clang.1_0.compiler (in target 'StereoWidth - Shared Code' from project 'StereoWidth')
    cd /var/folders/c4/94nvs2kx1ts1knpwm3xs5b900000gn/T/tp435d986b_f7be_460e_aa31_7ccf81fece40/Builds/MacOSX
    export LANG=en_US.US-ASCII
    /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -x objective-c++ -target
    x86_64-apple-macos10.11 -fmessage-length=0 -fdiagnostics-show-note-include-stack -fmacro-backtrace-limit=0 -std=c++11
    -stdlib=libc++ -Wno-trigraphs -fpascal-strings -O3 -flto -fno-common -Wno-missing-field-initializers -Wno-missing-prototypes
    -Wunreachable-code -Wno-implicit-atomic-properties -Wno-objc-interface-ivars -Wno-arc-repeated-use-of-weak -Wnon-virtual-dtor
    -Wno-overloaded-virtual -Wno-exit-time-destructors -Wduplicate-method-match -Wno-missing-braces -Wparentheses -Wswitch
    -Wunused-function -Wno-unused-label -Wno-unused-parameter -Wunused-variable -Wunused-value -Wempty-body -Wuninitialized
    -Wno-unknown-pragmas -Wno-shadow -Wno-four-char-constants -Wno-conversion -Wconstant-conversion -Wint-conversion -Wbool-conversion
    -Wenum-conversion -Wno-float-conversion -Wnon-literal-null-conversion -Wobjc-literal-conversion -Wshorten-64-to-32
    -Wno-newline-eof -Wno-selector -Wno-strict-selector-match -Wundeclared-selector -Wno-deprecated-implementations
    -Wno-c++11-extensions -D_NDEBUG=1 -DNDEBUG=1 -DJUCER_XCODE_MAC_F6D2F4CF=1 -DJUCE_APP_VERSION=1.0.0 -DJUCE_APP_VERSION_HEX=0x10000
    -DJucePlugin_Build_VST=1 -DJucePlugin_Build_VST3=0 -DJucePlugin_Build_AU=0 -DJucePlugin_Build_AUv3=0 -DJucePlugin_Build_RTAS=0
    -DJucePlugin_Build_AAX=0 -DJucePlugin_Build_Standalone=0 -DJUCE_SHARED_CODE=1 -DOBJC_OLD_DISPATCH_PROTOTYPES=0 -isysroot
    /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk -fasm-blocks -fstrict-aliasing
    -Wprotocol -Wdeprecated-declarations -Winvalid-offsetof -fvisibility=hidden -fvisibility-inlines-hidden -Wno-sign-conversion
    -Winfinite-recursion -Wmove -Wcomma -Wblock-capture-autoreleasing -Wstrict-prototypes -Wrange-loop-analysis
    -Wno-semicolon-before-method-body
    -I/var/folders/c4/94nvs2kx1ts1knpwm3xs5b900000gn/T/tp435d986b_f7be_460e_aa31_7ccf81fece40/Builds/MacOSX/build/Release/include
    -I../../JuceLibraryCode -I../../modules -I../../modules/juce_audio_plugin_client
    -I/var/folders/c4/94nvs2kx1ts1knpwm3xs5b900000gn/T/tp435d986b_f7be_460e_aa31_7ccf81fece40/Builds/MacOSX/build/StereoWidth.build/Release/StereoWidth\
    -\ Shared\ Code.build/DerivedSources-normal/x86_64
    -I/var/folders/c4/94nvs2kx1ts1knpwm3xs5b900000gn/T/tp435d986b_f7be_460e_aa31_7ccf81fece40/Builds/MacOSX/build/StereoWidth.build/Release/StereoWidth\
    -\ Shared\ Code.build/DerivedSources/x86_64
    -I/var/folders/c4/94nvs2kx1ts1knpwm3xs5b900000gn/T/tp435d986b_f7be_460e_aa31_7ccf81fece40/Builds/MacOSX/build/StereoWidth.build/Release/StereoWidth\
    -\ Shared\ Code.build/DerivedSources -Wreorder
    -F/var/folders/c4/94nvs2kx1ts1knpwm3xs5b900000gn/T/tp435d986b_f7be_460e_aa31_7ccf81fece40/Builds/MacOSX/build/Release -MMD -MT
    dependencies -MF
    /var/folders/c4/94nvs2kx1ts1knpwm3xs5b900000gn/T/tp435d986b_f7be_460e_aa31_7ccf81fece40/Builds/MacOSX/build/StereoWidth.build/Release/StereoWidth\
    -\ Shared\ Code.build/Objects-normal/x86_64/include_juce_events.d --serialize-diagnostics
    /var/folders/c4/94nvs2kx1ts1knpwm3xs5b900000gn/T/tp435d986b_f7be_460e_aa31_7ccf81fece40/Builds/MacOSX/build/StereoWidth.build/Release/StereoWidth\
    -\ Shared\ Code.build/Objects-normal/x86_64/include_juce_events.dia -c
    /var/folders/c4/94nvs2kx1ts1knpwm3xs5b900000gn/T/tp435d986b_f7be_460e_aa31_7ccf81fece40/JuceLibraryCode/include_juce_events.mm -o
    /var/folders/c4/94nvs2kx1ts1knpwm3xs5b900000gn/T/tp435d986b_f7be_460e_aa31_7ccf81fece40/Builds/MacOSX/build/StereoWidth.build/Release/StereoWidth\
    -\ Shared\ Code.build/Objects-normal/x86_64/include_juce_events.o
warning: Could not read serialized diagnostics file: Cannot Load File: Failed to open diagnostics file (in target 'StereoWidth -
Shared Code' from project 'StereoWidth')

** BUILD FAILED **


The following build commands failed:
	CompileC
        /var/folders/c4/94nvs2kx1ts1knpwm3xs5b900000gn/T/tp435d986b_f7be_460e_aa31_7ccf81fece40/Builds/MacOSX/build/StereoWidth.build/Release/StereoWidth\
        -\ Shared\ Code.build/Objects-normal/x86_64/StereoWidthPluginProcessor.o
        /var/folders/c4/94nvs2kx1ts1knpwm3xs5b900000gn/T/tp435d986b_f7be_460e_aa31_7ccf81fece40/Source/StereoWidthPluginProcessor.cpp
        normal x86_64 c++ com.apple.compilers.llvm.clang.1_0.compiler
(1 failure)

It seems to be having trouble with the Xcode compiler, but I don't know how to fix it.

I should probably mention I'm running Xcode 11.14 and macOS 10.15.4 (Catalina). This computer is only a few months old and these are fresh installations of Xcode and Matlab.

Thank you for the help.

[Egebjerg]

Hi

I had a similar issue after upgrading Xcode a few weeks ago, so I rolled back to Xcode 11.3.1 (117505), and after that all seems to be OK.

Best regards

Egebjerg

[Colin Malloy]

That worked. Thanks so much!