I can create a new sketch in my documents/libraries/ folder. But if I then make a change and try to save that sketch, I get the error message: Some files are marked "read-only" so you'll need to re-save this sketch to another location. From googling this error, the most common problem seems to be …

SOLVED: Can't save sketches

pert April 19, 2021, 2:01am 2

Don't save sketches to the libraries folder. That folder should only be used for libraries.

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