Error 0x8001012E

Value: -2147417810 | 0x8001012E | 2147549486

What does it mean ?

CO_E_CONVERSIONFAILED  
Unable to convert a wide character trustee string to a multibyte trustee string
Value: 302 | 0x012E | 0b0000000100101110

Where does it come from ?

FACILITY_RPC  
RPC subsystem
Value: 1 | 0x001 | 0b00000001

StackOverflow

Other Errors for FACILITY_RPC