Tutorials not working: Adventure Game, 2D Game Kit, 3D Game Kit... downloads but won't run

nothing I download in the tutorials section works after 2018.3 upgrade. the files load but either nothing shows when i load the sample scene and hit play or it doesn't play because of script problems or locating necessary things to work. i uninstalled older version and downloaded and installed the new version then uninstalled that after not working and did it again. tutorials still won't work. does anyone know a fix? thank you.

 

We're going to have to fix the problems in the console to get them working. Can you post the errors?