Every time I start Arduino IDE, a notification appears:
"Ignoring bad library name" The library "AVR Standard_C_(C90)_Time_Library" cannot be used. Library names must contain only basic letters and numbers etc.
I reinstalled the program but this message still shows up every time I start Arduino or open library manager. How to get rid of it?
There's a folder in one of your library folders named AVR Standard_C_(C90)_Time_Library. The most probable location is {sketchbook folder}/libraries. You can find the location of the sketchbook folder at File > Preferences > Sketchbook location. This is not a valid library folder name, please rename the folder to AVR_Standard_C_C90_Time_Library. That will solve the issue.
Thanks, this solved the problem.
pert:
There's a folder in one of your library folders named AVR Standard_C_(C90)_Time_Library. The most probable location is {sketchbook folder}/libraries. You can find the location of the sketchbook folder at File > Preferences > Sketchbook location. This is not a valid library folder name, please rename the folder to AVR_Standard_C_C90_Time_Library. That will solve the issue.
I have the same problem, but with the message the library "New folder" cannot be used. I also can t find sketchbook file preferences and sketchbook location.
Ok, my problem was that i wasn't searching in the right place. It's not where thearduino.exe is located. Instead, the libraries that was mentioned earlier are located in documents, as in the picture.
