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MCPublishCache Error on 2015.3 Startup May be due to PhotoVia plugin


New Member
Oct 13, 2015
Lightroom Experience
I just updated to 2015.3. When I opened the program, just after the splash screen I got the following error message:


The program still ran after clicking "OK", at least the Library and Develop modules. I didn't try any export or publish functionality, which ties into what followed.

I did some reading around several forums and the Adobe blogs and I came to suspect the PhotoVia plugin. I disabled that plugin and, so far, the error has not recurred.

I have not looked for an update to the plugin yet since i really don't use it that often. If anyone has further information on this error and how to solve it, that would be great.


  • LR Error.jpg
    LR Error.jpg
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Last edited by a moderator:
Sep 29, 2007
Isle of Wight, UK
Lightroom Experience
Power User
Lightroom Version
Cloud Service
Hi Quincy, welcome to the forum!

If disabling the plug-in has fixed, then you're right, checking for an updated plug-in would be a great place to start. If that doesn't do the trick, then reporting it to the plug-in developers would be next in line.