The project file could not be saved.......

Hi Roger,

I really appreciate you reaching out about this. I know that's got to be frustrating, and we definitely don't want you to lose hours of work!

First, let's check to see if you can clear out your temporary files folder to free up some space. Here's how:

1. Open Windows Explorer, type %temp% in the address field, and press Enter. 
2. When your temp directory opens, press Ctrl+A to select all the temp files, then press the Delete key on your keyboard.
3. A few temp files may currently be in use that can't be deleted. When prompted, you can skip those.
4. Try to save your project file again.

Also, be sure you're working from your local hard drive, since network or flash drives are known to cause problems. 

Let me know if that helps! 

Hi Jacek,

I see you've posted in a few places in addition to this comment. Our team is happy to help and can provide a lot of support in this area, as it's not something that we'd expect (even with a handful of forum discussions on it). The error is often the result of not following some of our documented best practices here to prevent file corruption or other odd behavior, or something else on the system that's taxing the resources and preventing Storyline from working normally.

Whatever the case, our Support Team is available 24/7 and we'll work with you one-on-one. We'll want to know what version of Storyline you're using and any other specifics about your environment.