Error 0x8004292E

Value: -2147210962 | 0x8004292E | 2147756334

What does it mean ?

VDS_E_VD_DISK_IS_MERGING  
The requested operation cannot be performed while the virtual disk is merging.
Value: 10542 | 0x292E | 0b0010100100101110

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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