Invalid library found

Hi,

I am kinda new to this. I was able to verify/compile the sketch and I am not getting any errors.I tried and uploading and it uploads successfully, however after uploading it to the arduino uno I am getting this message. Invalid library found in C:\Users\e.bicol\Downloads\arduino-1.8.10\libraries\firstattempt: no headers files (.h) found in C:\Users\e.bicol\Downloads\arduino-1.8.10\libraries\firstattempt.

I am using the non admin install version of the IDE

The IDE complains about directories under 'libraries' if they don't have code in them, even if the directory is completely empty. If that's now a 'dead' project, just delete it.

Is it an error or just a warning? In the latter case, you can ignore it.