If the version of doxygen that is used is not the same version that wxWidgets needs a lot of missing tag messages is displayed. I think it would be best if the line in the build.py file that has this "os.environ['WX_SKIP_DOXYGEN_VERSION_CHECK'] = '1'" be set to zero or commented out. When I used version doxygen v1.8.8 with wxWidgets 3.1.5 almost all of the missing tag messages went away.
If the version of doxygen that is used is not the same version that wxWidgets needs a lot of missing tag messages is displayed. I think it would be best if the line in the build.py file that has this "os.environ['WX_SKIP_DOXYGEN_VERSION_CHECK'] = '1'" be set to zero or commented out. When I used version doxygen v1.8.8 with wxWidgets 3.1.5 almost all of the missing tag messages went away.