Your sketchbook folder is the folder where the Arduino IDE stores
your sketches. This folder is automatically created by the IDE when you
install it.
On Linux machines, the folder is named "Sketchbook" and it is typically located in /home/
On Windows and Macintosh machines, the default name of the folder is "Arduino" and is located in your Documents folder.
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I would try to create the folders in the right places or search for them and move them into the right place. But, first I would make sure I imported the libraries from the arduino ide application.
That will allow the Arduino IDE to know they exist..
https://www.arduino.cc/en/guide/libraries for guidance on manually importing libraries.