ORA-31644
        unable to position to block number string in dump file "string"
        
        
        Cause
        Either Oracle Data Pump Export or Oracle Data Pump Import was unable to position the file pointer to a specific block within the dump file. This message is usually followed by device messages from the operating system.
        Action
        Take the appropriate action based on the device messages.
        
     
    
    
        ORA-31644
        unable to position to block number string in dump file "string"
        
        
        Cause
        Export or Import was unable to position its file pointer to a specific block within the dump file. This message is usually followed by device messages from the operating system.
        Action
        Take appropriate action based on the device messages.
        
     
    
    
        ORA-31644
        unable to position to block number string in dump file "string"
        
        
        Cause
        Export or Import was unable to position its file pointer to a specific block within the dump file. This message is usually followed by device messages from the operating system.
        Action
        Take appropriate action based on the device messages.