[bcc32 Error] typeinfo.h(154): E2367 Can't inherit RTTI class from non-RTTI base 'exception'
Full parser context
HISPluginDebug.cpp(3): #include d:\program files (x86)\embarcadero\studio\18.0\include\windows\vcl\vcl.h
vcl.h(10): #include d:\program files (x86)\embarcadero\studio\18.0\include\windows\vcl\basepch0.h
basepch0.h(62): #include d:\program files (x86)\embarcadero\studio\18.0\include\windows\rtl\System.hpp
System.hpp(1599): #include d:\program files (x86)\embarcadero\studio\18.0\include\windows\rtl\sysclass.h
sysclass.h(38): #include d:\program files (x86)\embarcadero\studio\18.0\include\dinkumware\iostream
iostream(5): #include d:\program files (x86)\embarcadero\studio\18.0\include\dinkumware\istream
istream(5): #include d:\program files (x86)\embarcadero\studio\18.0\include\dinkumware\ostream
ostream(5): #include d:\program files (x86)\embarcadero\studio\18.0\include\dinkumware\ios
ios(5): #include d:\program files (x86)\embarcadero\studio\18.0\include\dinkumware\xlocnum
xlocnum(8): #include d:\program files (x86)\embarcadero\studio\18.0\include\dinkumware\streambuf
streambuf(5): #include d:\program files (x86)\embarcadero\studio\18.0\include\dinkumware\xiosbase
xiosbase(4): #include d:\program files (x86)\embarcadero\studio\18.0\include\dinkumware\xlocale
xlocale(7): #include d:\program files (x86)\embarcadero\studio\18.0\include\dinkumware\typeinfo
typeinfo(8): #include d:\program files (x86)\embarcadero\studio\18.0\include\windows\crtl\typeinfo.h
typeinfo.h(55): namespace std
typeinfo.h(154): class bad_cast
懒得找原因了，新建工程OK了。