I am unable to save my project.  I get the "Cannot write file--disk may be full" message My disk is far from full.  what causes this.  I obbiously don't want to lose all the work I just did.. this is sonar X3e

Try using "Save as" to a different location

scook
Try using "Save as" to a different location

good idea  but it didn't work.  I am wracking my brain here and the only thing different is that I activated melodyne.  I also bounced a bunch of clips and deleted a bunch of take lanes.  I actually had one clip that I used melodyne one.  I removed it thinking that was the problem but it made no difference

Copy all of your tracks and place them into a new project. That will usually work if you have the disk space.

Guitarmech111
Copy all of your tracks and place them into a new project. That will usually work if you have the disk space.

good idea  that worked  and then right after I closed the original project sonar crashed.  thanks a lot!!   saved my butt

But does anyone know what causes this?

I thought this was fixed in X3e...

something like that has happened to me a time or two.....
 
I suspect the culprit to be something has glitched in the underlying OS and not directly related to Sonar..... but it affects the save operation in Sonar....
 
Anytime the computer starts to act squirrley it's time to quickly cover your butt with a save or in this case a copy to a new project and save..... as soon as I notice my DAW is not acting right I save and restart the complete system from a cold boot. That only takes a few minutes, whereas forging ahead could cost me hours of work.

Guitarhacker
something like that has happened to me a time or two.....
 
I suspect the culprit to be something has glitched in the underlying OS and not directly related to Sonar..... but it affects the save operation in Sonar....
 
Anytime the computer starts to act squirrley it's time to quickly cover your butt with a save or in this case a copy to a new project and save..... as soon as I notice my DAW is not acting right I save and restart the complete system from a cold boot. That only takes a few minutes, whereas forging ahead could cost me hours of work.

Yes SOS is what I didn't follow.  (Save Often Stupid) So I was stupid.  I had this problem once with Sonar 8.3 and I can't remember what my solution was.  I think it involved getting rid of a plug in or something but not sure.
   This is Windows 7 64 bit.  a relatively fresh install.   

PJH
I thought this was fixed in X3e...

Ohhh!  So this was an issue?  but apparently not completely resolved.  hmmmm