Why i am facing this problem? [Solved]

[vickyjadhav6161]

Welcome to Medusa Pro Software version 1.2.2. 
Started.
Reader #0: Alcor Micro USB Smart Card Reader 0
Reader #1: FT SCR2000 0

Please disconnect battery and USB cable.

Selected device model: Samsung GT-I9300.
Selected file: C:/Program Files/Medusa Pro Software/firmwareFolder/SAMSUNG_GT-I9300_EMMC.srf.

eMMC interface selected.

Connecting...
Device       : Samsung eMMC VTU00M
Page size    : 512 B
Block size   : 512 B
Block count  : 30777344
Size         : 14.68 GB
---------------------------------------------------------------
CID Info

CID                   : 15010056545530304DFC3D39868641FB
Manufacturer ID       : 0X15
Device/BGA            : BGA(Discrete embeded)
OEM/Application ID    : 0X00
Product name          : VTU00M
Product revision      : 15.12
Product serial number : (hex)3D398686
Manufacturing date    : 04/2014
---------------------------------------------------------------
CSD Info

CSD                   : D02701320F5903FFF6DBFFFF8E40406D
CSD structure         : CSD version No. 1.2
SPEC version          : 4.1, 4.2, 4.3, 4.4, 4.41, 4.5,
                        4.51, 5.0, 5.01, 5.1
Data read access time1: 15 ms
TRAN speed            : 26 MHz
READ block length     : 512 Bytes
WP group enable       : YES
PERM_WRITE_PROTECT    : NO
TMP_WRITE_PROTECT     : NO
---------------------------------------------------------------
EXTCSD Info

Revision 1.6 (for MMC v4.5, v4.51)
Erase block size      : 512 Kbytes
Boot1 size            : 2048 Kbytes
Boot2 size            : 2048 Kbytes
RPMB size             : 128 Kbytes
Boot partition enable : Boot partition 1

Partition config      : 01001000
Backup EXT_CSD saved to file C:/Program Files/Medusa Pro Software/EXT_CSD Backups/VTU00M_10_11_2016_15_38_21.bin.
Connect successful.
---------------------------------------------------------------
Writting GPT partition...	
ERROR[012]: Write error.
 At sector 0
Attempting to write...
Disconnected