After I set the location here:
The emulator outputs these messages repeatedly:
C:/buildbot/src/android/emu-35-4-release/hardware/google/gfxstream/host/gl/glestranslator/GLES_V2/GLESv2Imp.cpp:glReadPixels:3311 error 0x506
C:/buildbot/src/android/emu-35-4-release/hardware/google/gfxstream/host/gl/glestranslator/GLES_V2/GLESv2Imp.cpp:glPixelStorei:3289 error 0x501
C:/buildbot/src/android/emu-35-4-release/hardware/google/gfxstream/host/gl/glestranslator/GLES_V2/GLESv2Imp.cpp:glReadPixels:3311 error 0x506
C:/buildbot/src/android/emu-35-4-release/hardware/google/gfxstream/host/gl/glestranslator/GLES_V2/GLESv2Imp.cpp:glPixelStorei:3289 error 0x501
C:/buildbot/src/android/emu-35-4-release/hardware/google/gfxstream/host/gl/glestranslator/GLES_V2/GLESv2Imp.cpp:glReadPixels:3311 error 0x506
C:/buildbot/src/android/emu-35-4-release/hardware/google/gfxstream/host/gl/glestranslator/GLES_V2/GLESv2Imp.cpp:glPixelStorei:3289 error 0x501
C:/buildbot/src/android/emu-35-4-release/hardware/google/gfxstream/host/gl/glestranslator/GLES_V2/GLESv2Imp.cpp:glReadPixels:3311 error 0x506
C:/buildbot/src/android/emu-35-4-release/hardware/google/gfxstream/host/gl/glestranslator/GLES_V2/GLESv2Imp.cpp:glPixelStorei:3289 error 0x501
And the emulator screen becomes black:

How to solve it?