Cannot Save File

[jakeKE3YW]

Hi, I'm having problems saving a file.

I've tried to export it to save it locally and that doesn't work either. 

I've had a few error messages but the one that's coming up now is this: "Error: Fusion 360's attempts to create a Recovery file for T4-SWB-PNR-KTC-00 (EX) v5 failed even after multiple tries. We recommend you save your document now."

Very frustrating as I can't find a way to save the file at all now so cannot do any more work on it. Looking like I'll have to start from scratch. 

Any help would be appreciated.

[jakeKE3YW]

Here's another message I get from the same file: Error: The source asset AggregationAsset in document T4-SWB-PNR-KTC-00 (EX) v5 has not referenced the target asset FusionAssetName in document A Only Symbol v1!