Revit 2019 does not start - "DBApplication "bb3086.....cf2f" Startup failed

[dwayne_smith]

Symptoms

• Revit 2018 deployment by itself - works without issue
• Revit 2019 deployment (including several 3rd party add-ins) by itself - works without issue
• If both of these are installed on the same machine however, I get the attached message on startup.

I found that if I comment out the DBApplication section of this file

C:\ProgramData\Autodesk\Revit\Addins\2019\Autodesk.Collaborate.addin

the error does not appear, but I don't know what other functionality is affected.

I've see the other suggested solutions for reinstalling Collaboration for Revit, but those articles and links are for 2015.  Any suggestions?

[barthbradley]

https://knowledge.autodesk.com/support/revit-products/troubleshooting/caas/sfdcarticles/sfdcarticles...

[dwayne_smith]

Thanks for the link.  It seems that for this to work properly, there are 2 security fixes that need to be applied to 2018.

2018.0.3 and 2018.3.2

In addition, the 2019.1 Update needs to be applied.  For this, I would like to include it in the deployment, but I can't get it to work.  I've tried the built-in method (adding it into the deployment during the Add Updates step), and I've tried the "workaround method", which is installing it as an add-on with /q.  Neither is working for me yet.

I'm glad to know what is causing the DBApplication error, but now I need to know how to fix the deployment to resolve it.