ROLI JUCE Android CMake错误，生成的空白演示应用程序无法在Android Studio中编译

Question

下载Projucer后，我生成了一个空白应用程序，然后将其导出到Android（以调试模式）并在Android Studio中打开了它。 修复了与SDK和NDK版本有关的错误（我将引用更新为使用最新版本进行构建）之后，代码无法在CMake阶段构建，并显示以下错误：

Build command failed.
Error while executing process /Users/user/Library/Android/sdk/cmake/3.6.4111459/bin/cmake with arguments {--build /Users/user/Documents/Blank/Builds/Android/app/.externalNativeBuild/cmake/debug_Debug/x86 --target juce_jni}
[1/16] Building C object CMakeFiles/cpufeatures.dir/Users/user/Library/Android/sdk/ndk-bundle/sources/android/cpufeatures/cpu-features.c.o
[2/16] Linking C static library libcpufeatures.a
[3/16] Building CXX object CMakeFiles/juce_jni.dir/Users/user/Documents/Blank/JuceLibraryCode/include_juce_audio_basics.cpp.o
[4/16] Building CXX object CMakeFiles/juce_jni.dir/Users/user/Documents/Blank/JuceLibraryCode/include_juce_audio_devices.cpp.o
[5/16] Building CXX object CMakeFiles/juce_jni.dir/Users/user/Documents/Blank/JuceLibraryCode/include_juce_audio_formats.cpp.o
[6/16] Building CXX object CMakeFiles/juce_jni.dir/Users/user/Documents/Blank/JuceLibraryCode/include_juce_audio_processors.cpp.o
[7/16] Building CXX object CMakeFiles/juce_jni.dir/Users/user/Documents/Blank/JuceLibraryCode/include_juce_core.cpp.o
[8/16] Building CXX object CMakeFiles/juce_jni.dir/Users/user/Documents/Blank/JuceLibraryCode/include_juce_cryptography.cpp.o
[9/16] Building CXX object CMakeFiles/juce_jni.dir/Users/user/Documents/Blank/JuceLibraryCode/include_juce_data_structures.cpp.o
[10/16] Building CXX object CMakeFiles/juce_jni.dir/Users/user/Documents/Blank/JuceLibraryCode/include_juce_events.cpp.o
[11/16] Building CXX object CMakeFiles/juce_jni.dir/Users/user/Documents/Blank/JuceLibraryCode/include_juce_graphics.cpp.o
[12/16] Building CXX object CMakeFiles/juce_jni.dir/Users/user/Documents/Blank/JuceLibraryCode/include_juce_gui_basics.cpp.o
[13/16] Building CXX object CMakeFiles/juce_jni.dir/Users/user/Documents/Blank/JuceLibraryCode/include_juce_gui_extra.cpp.o
[14/16] Building CXX object CMakeFiles/juce_jni.dir/Users/user/Documents/Blank/JuceLibraryCode/include_juce_opengl.cpp.o
FAILED: /Users/user/Library/Android/sdk/ndk-bundle/toolchains/llvm/prebuilt/darwin-x86_64/bin/clang++  --target=i686-none-linux-android28 --gcc-toolchain=/Users/user/Library/Android/sdk/ndk-bundle/toolchains/llvm/prebuilt/darwin-x86_64  -DDEBUG=1 -DJUCER_ANDROIDSTUDIO_7F0E4A25=1 -DJUCE_ANDROID=1 -DJUCE_ANDROID_ACTIVITY_CLASSNAME=com_yourcompany_blank_Blank -DJUCE_ANDROID_ACTIVITY_CLASSPATH=\"com/yourcompany/blank/Blank\" -DJUCE_ANDROID_API_VERSION=10 -DJUCE_ANDROID_SHARING_CONTENT_PROVIDER_CLASSNAME=com_yourcompany_blank_SharingContentProvider -DJUCE_ANDROID_SHARING_CONTENT_PROVIDER_CLASSPATH=\"com/yourcompany/blank/SharingContentProvider\" -DJUCE_APP_VERSION=1.0.0 -DJUCE_APP_VERSION_HEX=0x10000 -DJUCE_PUSH_NOTIFICATIONS=1 -D_DEBUG=1 -Djuce_jni_EXPORTS -I../../../../../../../JuceLibraryCode -I/Users/user/Downloads/JUCE/modules -I/Users/molly/Library/Android/sdk/ndk-bundle/sources/android/cpufeatures --sysroot /Users/user/Library/Android/sdk/ndk-bundle/toolchains/llvm/prebuilt/darwin-x86_64/sysroot -g -DANDROID -fdata-sections -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -Wa,--noexecstack -Wformat -Werror=format-security -stdlib=libc++ -std=c++11 -fexceptions -frtti -fsigned-char -std=c++14 -O0 -fno-limit-debug-info -O0 -fPIC -MD -MT CMakeFiles/juce_jni.dir/Users/user/Documents/Blank/JuceLibraryCode/include_juce_opengl.cpp.o -MF CMakeFiles/juce_jni.dir/Users/user/Documents/Blank/JuceLibraryCode/include_juce_opengl.cpp.o.d -o CMakeFiles/juce_jni.dir/Users/user/Documents/Blank/JuceLibraryCode/include_juce_opengl.cpp.o -c /Users/user/Documents/Blank/JuceLibraryCode/include_juce_opengl.cpp
In file included from /Users/user/Documents/Blank/JuceLibraryCode/include_juce_opengl.cpp:9:
/Users/user/Downloads/JUCE/modules/juce_opengl/juce_opengl.cpp:118:26: error: no member named 'glDrawBuffer' in the global namespace; did you mean simply 'glDrawBuffer'?
 JUCE_GL_BASE_FUNCTIONS (JUCE_DECLARE_GL_FUNCTION)
 ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
/Users/user/Downloads/JUCE/modules/juce_opengl/native/juce_OpenGLExtensions.h:69:5: note: expanded from macro 'JUCE_GL_BASE_FUNCTIONS'
    USE_FUNCTION (glDrawBuffer,            void, (GLsizei p1, const GLenum* p2), (p1, p2))
    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/user/Downloads/JUCE/modules/juce_opengl/juce_opengl.cpp:116:72: note: expanded from macro 'JUCE_DECLARE_GL_FUNCTION'
    returnType OpenGLExtensionFunctions::name params noexcept { return ::name callparams; }
                                                                       ^~
/Users/user/Downloads/JUCE/modules/juce_opengl/juce_opengl.cpp:118:2: note: 'glDrawBuffer' declared here
 JUCE_GL_BASE_FUNCTIONS (JUCE_DECLARE_GL_FUNCTION)
 ^
/Users/user/Downloads/JUCE/modules/juce_opengl/native/juce_OpenGLExtensions.h:69:19: note: expanded from macro 'JUCE_GL_BASE_FUNCTIONS'
    USE_FUNCTION (glDrawBuffer,            void, (GLsizei p1, const GLenum* p2), (p1, p2))
                  ^
1 error generated.
ninja: build stopped: subcommand failed.

我尝试重新安装Projucer，运行不同版本的Android Studio并生成不同的Demo项目，但是它们都在同一时间失败。 在同一台计算机（macOS）和同一台Projucer上生成Xcode文件时，该代码会编译并在模拟的iOS上运行。

我是否缺少某些库或某处的文件路径不正确？

引发错误的文件来自他们自己的库，所以我不确定是什么引起了该问题，我们将不胜感激！

该错误专门发生在USE_FUCNTION（glDrawBuffer ...）行上，因为我尝试将这行代码移至库文件中，并且错误随其一起移动（它在代码块的末尾，所以我想看看它是否是那个失败的代码块，但似乎是该行）

Answer 1

将Android导出程序中的“最低SDK版本”设置为24，而不是默认值10。

当前的默认值有点低，在下一个JUCE版本中将提高到28。