Error 0x8004251D

Value: -2147212003 | 0x8004251D | 2147755293

What does it mean ?

VDS_E_TARGET_PACK_NOT_EMPTY  
The target pack is not empty.
Value: 9501 | 0x251D | 0b0010010100011101

Where does it come from ?

FACILITY_ITF  
COM/OLE Interface management. FACILITY_ITF is designated for user-defined error codes returned from interface methods
Value: 4 | 0x004 | 0b00000100

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