Error 0x8002802C

Value: -2147319764 | 0x8002802C | 2147647532

What does it mean ?

TYPE_E_AMBIGUOUSNAME  
Ambiguous name.
Value: 32812 | 0x802C | 0b1000000000101100

Where does it come from ?

FACILITY_DISPATCH  
COM Dispatch (IDispatch interface)
Value: 2 | 0x002 | 0b00000010

Other Errors for FACILITY_DISPATCH