Verify failed when flashing program

Hello, I'm trying to use the Arduino IDE to flash a blank program via the native USB port. This board was working before, then stopped this morning with the error "device not found on /dev/tty.usbmodem1442". I used the erase button and now I receive the error:

Erase flash
Write 9504 bytes to flash

[                              ] 0% (0/38 pages)
[=======                       ] 26% (10/38 pages)
[===============               ] 52% (20/38 pages)
[=======================       ] 78% (30/38 pages)
[==============================] 100% (38/38 pages)
Verify 9504 bytes of flash

[                              ] 0% (0/38 pages)
[=======                       ] 26% (10/38 pages)
[===============               ] 52% (20/38 pages)
[=======================       ] 78% (30/38 pages)
[==============================] 100% (38/38 pages)
Verify failed
Page errors: 38
Byte errors: 9092

Any ideas?

Hello, may I ask you a question solved? I also encountered the same problem.

Try to replace another microUSB cable and see if it helps, I found the the microUSB cable/microUSB connector wasn't stable sometime.