Issues exporting with Adobe Media Encoder

[defaultzo1kl5uuzsp9]

For the past several months I have been using Adobe Media Encoder to export my video editing projects out of Premiere Pro. However, whenever I try exporting out of Premiere Pro I am met with the following alert notification:

"Adobe Media Encoder is not installed. Please download and install it to use this feature. Go to http://creative.adobe.com."

Of course I do have it installed so I have no idea why this error keeps popping up. I tried opening and closing the apps, shutting off and turning the computer back on but nothing. Don't know why this is happening

[Erik Narramore]

So what i have found is that the PR or AE have to be the same patch as ME if you have a mismatch you get this error. 

[defaultzo1kl5uuzsp9]

How do I get them to be on the same patch?