No library found for codeanticode.planetarium

[ChangGengk]

Run error: No library found for codeanticode.planetarium
Libraries must be installed in a folder named 'libraries' inside the sketchbook folder (see the Preferences window).

[janebeta7]

Hello, you must to copy planetarium into libraries folder, what SO do you use?

[ChangGengk]

My system is windows，And copied planetarium to C:\Users\26437\Documents\Processing\libraries