Whenever I open my project I get this error dialog.
 
http://www.cakewalk.com/Documentation?product=SONAR%20X2&language=3&help=Dialogs2.133.html
 
All of the tracks and busses have outputs assigned, yet according to this page it should only happen when an output is none.
 
Any ideas?  Anyway to reset the project so this doesnt happen?

Make sure you don't have any SENDS going nowhere
 
I got caught out by this one and it was a SEND I had forgotten about

Thanks, there was an extra bus that got put in there.

Additionally, if like me, you intentionally use busses going nowhere that warning can be turned off by use of a variable WarnSilentBusses=0 
 
Put that in your Cakewalk.ini file and it won't bother you again. (Prefs-->File-->Initialisation File)

More info. First hit on Google search.

My project keeps dropping outputs!!!
 
Audio interface stays on, but when I relaunch program a random selection of busses are out!
 
Serious bugs.  I fix, save, reload, and another set of outputs are missing.  Then when I fix them, there is no audio output, even though the interface shows audio in totalmix.
 
 

I know its broken because when I save and relaunch Sonar the audio will play.

You have a system problem. It is not a bug. If it were this board would be full of the members reporting it. 

Please, you're really going to HAVE to give better information. What do you mean by "dropping ouputs"? Are the outputs set from something to "none"? Are they unchecked in preferences? Are buses that used to be there not there? When you say you "fix," what do you mean? You insert new buses? Re-assign outputs? Re-do preferences?
 
And a sentence like this tells us nothing: "I know its broken because when I save and relaunch Sonar the audio will play."
 
Instead of just running to the forum whenever there's a hiccup, pause, and try to come up with a coherent description of what's happening, with the steps you take to reproduce it or fix it. Otherwise it's like going to the doctor's and saying "my heart's messed up." Well, is it beating too fast, beating too slow, arhythmic, heartburn, gas that produces a pain in the area of the heart, are you short of breath...who knows?

What is broken?  SONAR, total mix, your computer?  You need to go through and make sure in your SONAR project there are no busses sent to nowhere.  Same w/ totalmix.  If you look at the far right of the mixer in SONAR you'll find the hardware outputs (ie., your RME).   Those might not be obvious, but you can slide it open just like the busses pan.
 
Since I"ve been using 2 interfaces I will sometimes get this w/ the master output - I then find the correct ASIO driver and everything is hunky dory.
 
Finally, if you are connected to the internet and running youtube/youporn and MS sound through the RME, SONAR sometimes doesn't connect right after all the various bit depths and sample rates that are involved.  Or at least my TC Konnekt can get disconnected from SONAR.  And if you reinstall any RME software it may revert to the main output for those computer sounds.  It did for me when I installed drivers for the new interface.  It is quite a surprise to get extra loud error beeps through my mains when I'm mixing etc.
 
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