Compiler getting flaky

Projects Programming
1

I am using the latest version of the Arduino software (1.0.4) in Windows XP. I find that lately, my compilation times for modest-sized sketches can be 15 - 30 seconds: the progress bar advances to about the center, hangs for a while, then finally completes. Sometimes, but not always, I get a message that says

"unable to write to ...\core.a: file exists".

However, the sketch will download and run anyway.

The only suspicious thing I have done lately is to download the Atmel Studio, but it is not active when I am using 1.0.4. Any ideas what might be causing this?

Thanks in advance for any help.

2

Clicking compile or upload while the IDE is already compiling or uploading will cause this error. I have done this a few times by accident, sometimes it uploads, sometimes it dies in a spew of java exceptions.

I wish there was a 'clean' button for helping this problem ( IDE doesn't seems to clean up temp dirs on exit either, leaving thousands of files after a few days of use ), I have also had AVR apps conflicting with includes from ARM apps when the IDE uses the same temp folder for upload.