Can't upload sketch

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suddenly today.. can not upload sketch uno. have several, able upload sketch other uno's have, not one.

1.8.1 ide.

here error get.

please note: pin 13 flash when loading... @ end error , updated sketch never uploaded.

to keep things simple trying upload blink program in examples.

there noting usb cable attached uno.

any advice / info on why happening great.

code: [select]


sketch uses 926 bytes (2%) of program storage space. maximum 32256 bytes.
global variables use 9 bytes (0%) of dynamic memory, leaving 2039 bytes local variables. maximum 2048 bytes.
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x30
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x0f
avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x10
avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x20
avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x0f
avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x10
avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x30
avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x0f
avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x10
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x20
an error occurred while uploading sketch

i have exact same problem arduino uno ide 1.8.5. tried several times upload once in way uploads not.


Arduino Forum > Using Arduino > Installation & Troubleshooting > Can't upload sketch


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