Can't save my project with new kicad 7

Software
1

I just install the new kicad 7 on my windows PC. But when I open a old project that made by kicad 6.

When I try to save PCB or SCH, kicad 7 said

Error saving schematic file ‘xxxx.sch’
Failed to rename temporaty file
‘XXXX’

the bigger trouble is after I add a new symbol with kicad 7. my old kicad 6 also can’t open my private symbol libary.

So I can’t modify my old project.

Can anyone help?

Thanks a lot

2

I am guessing because I am only at 6.0.8:
Can you “save as” into another folder?
What happens if you copy the entire project folder using Windows Explorer and save it as a new name. That will provide backup. Then try deleting any questionable files in the new (or old) folder but do not disturb the other one…

3

This is correct.
Anything saved in 7 will no longer be able to be opened in 6. This includes projects and private libraries.

The correct procedure for private libraries, if you wish to keep them for different Kicad versions, is to duplicate them then rename one to the new kicad version and install that renamed version to the new kicad version.

4

Save as new project doesn’t help.

But can open each schematc and PCB, then save as new file with a new name. after this KiCAD 7 show a new project. Open it, then very thing will be fine.

5

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