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Author Topic: Error compiling. Unable to rename core.a  (Read 4598 times)
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Hi everyone.
I just started trying to make my recently buyed first arduino and I got stuck just in the very first step of making it work.

Trying to upload the blink example but with different time lapses for blinking, i get the next error while trying to compile.

"C:\Program Files\Arduino\arduino-1.0\hardware\tools\avr\bin\avr-ar: unable to rename 'core.a'; reason: File exists"

I'm using an Arduino Uno, with Windows Vista. I've installed it as told in the instructions and the thing is it has worked once of the about 50 that i've tried, and it compiled and uploaded.
I tired to reinstall all the folder, and worked well in the first try, but I keep on getting the same message now. smiley-sad

Any ideas!?
Thanks

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Really no one has an aswer?! :S
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Have the same problem. Tried giving the folder permissions to make changes but nothing works. Please someone help me. 
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Hi everyone.
I just started trying to make my recently buyed first arduino and I got stuck just in the very first step of making it work.

Trying to upload the blink example but with different time lapses for blinking, i get the next error while trying to compile.

"C:\Program Files\Arduino\arduino-1.0\hardware\tools\avr\bin\avr-ar: unable to rename 'core.a'; reason: File exists"

I'm using an Arduino Uno, with Windows Vista. I've installed it as told in the instructions and the thing is it has worked once of the about 50 that i've tried, and it compiled and uploaded.
I tired to reinstall all the folder, and worked well in the first try, but I keep on getting the same message now. smiley-sad

Any ideas!?
Thanks



You probably have some real-time anti-virus program running. You should disable this, or make sure everything to do with AVR development is ignored by it.
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I yield() for co-routines.

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Ignore it. I have had there error several times and for me, it always uploads if I ignore it and wait a few more minutes.
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Avoid throwing electronics out as you or someone else might need them for parts or use.
Solid state rectifiers are the only REAL rectifiers.
Resistors for LEDS!

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I would suggest moving the Arduino folder outside of "Program Files".

This is the convention that I follow and I have not had any problems:
C:\arduino\arduino-1.0
C:\arduino\arduino-1.0.1
...
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