Upload fails: "verification error, first mismatch at byte 0x0000"

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Are you still having this issue or did you find a solution?
I am having same problem, here"s my error code:

Arduino: 1.8.5 (Windows 10), Board: "Arduino/Genuino Mega or Mega 2560, ATmega2560 (Mega 2560)"

Sketch uses 1302 bytes (0%) of program storage space. Maximum is 253952 bytes.
Global variables use 9 bytes (0%) of dynamic memory, leaving 8183 bytes for local variables. Maximum is 8192 bytes.
avrdude: verification error, first mismatch at byte 0x0000
         0x14 != 0x06
avrdude: verification error; content mismatch
avrdude: verification error; content mismatch

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.
"Error compiling for board Arduino/Genuino Mega or Mega 2560."