compiling error

/Applications/Adobe Animate 2020/Adobe Animate 2020.app/Contents/Common/Configuration/Camera/Flash/privatePkg/___LayerProp___.as, Line 1, Column 1 5000: The class 'privatePkg.___LayerProp___' must subclass 'flash.display.MovieClip' since it is linked to a library symbol of that type.

/Users/(my name)/Desktop/, Line 1, Column 457 1152: A conflict exists with inherited definition flash.display:DisplayObject.x in namespace public.

error with a symbol that I deleted a long time ago, only with anything that has to do with the symbol. It ruins the transparency on all layers with classic tween. Could someone help with this???