"Forward declaration of class cannot have a nested name specifier" build failure(s) — clang 9.0.1

PackageVersionSupposed error messageFull log Bug report
geotranz 3.7-1.1../../GEOTRANS3/java_gui/geotrans3/jni/JNICCSObjectTranslator.h:14:7: error: forward declaration of class cannot have a nested name specifier Log
granule 1.4.0-7-9./GrappConf.h:31:7: error: forward declaration of class cannot have a nested name specifier Log

2 errors