After Effects error on launch, and can't import any videos - 3 MediaCore plugins can't be loaded

[kovacsg]

Hi!

I just installed Adobe After Effects, and Premiere Pro. Neither can import any video files - I tried, .mov, .mpeg, .mp4, .avi, .flv

It says unsupported file format or damaged file. I can play those files and tried multiple files too.

Now, Adobe After Effects also gives me an error on startup which says it failed to load MediaCore plugins and please reinstall them. The plugins are: importermpeg.prm, importerquicktime.prm, importerwindows.prm

After searching a while for online, I found that I should have Windows Media Player installed. The problem though, is that I have a Windows 10 Enterprise N version of it, and windows media player cannot be installed on those enterprise versions of windows.

I have QuickTime for Windows installed, but still AE doesn't list .mov as a supported file format. If I choose to import it obviously it doesn't work.

I've tried setting quicktime the default app for .mov files, still nothing. I've tried reinstalling AE, still nothing.

How could I fix this?

[Szalam]

If uninstalling and reinstalling AE doesn't work, you'll need to contact Adobe support.

You shouldn't need QuickTime for most MOV files since AE and Premiere now read them natively.

[Anders Jæger]

Hello!

Did you find a solution to this problem? I'm at work trying to solve this after the new update. Allso I have the Windows 10 Enterprise N version.

Re-installed my whole CC pack, quicktime and windows media player, plus updated anything on my PC that could relate to Adobe programs.

Thanks in advance!

[Anders Jæger]

Hello again !

I was thinking since Cineform codec should include mov support i thought installing GoPro Studio might have the same issues, and i was right.

This led me to an error from GoPro witch said : "MFPlat.dll is missing”.

I downloaded the "Media Feature Pack for N versions of Windows 10" and installed it. Now After Effects works again !

Download the Media Pack here, and if it still dosnt work be sure to try and install GoPro Studio (Quick its called these days) aswell.

https://gopro.com/help/articles/Solutions_Troubleshooting/Quik-for-desktop-error-MFPlat-dll-is-missi...

[Szalam · Accepted solution]

You can install the media player components that are needed. See this post from Tim.