I don't know what happen in your environment, do you install all of my plugins? or could you please provide the capx file?
I wanted to install the MoveTo for a capx example that was asking for it. I noticed I already had it but downloaded and put it back again. Kept saying it couldn't find it. Then I deleted and installed the MoveTo using your Tool. Still the same message.
Then I did some testing. I was using a LiteTween but had to be an older version so I deleted it. When I installed the LiteTween with your Tool and loaded back up my project C2 asked for the LiteTween plugin missing.
So I guess this example capx is using an old MoveTo behaviour and not detecting the new version as the same plugin.
I had to use the old LiteTween or my whole project would be wasted. It wouldn't even load without the plugin, which is scary... Which means if I ever update and lose the old version I won't be able to load my project anymore. That's messed up.