When is the Revit 2019 LumenRT plugin due for release?

It's in LumenRT Update 12 - out later this month

LumenRT Update 12 at C:\Program Files\Bentley\Bentley LumenRT CONNECT Edition - Update 12\LumenRT\Export\Revit doesnt have any dll file for Revit 2019.

I'm using the same version and it works fine on the Autodesk Test Architectural file.  Can you try it on this file and see if it works.  Maybe it's something with the file

Sorry I have downloaded you zip file. extracted it and placed it in the correct fold. And get the External Tool Failure dialog. Also looking int registering the DLL file in windows. Some just coping a DLL does not work with windows. It must be put in place by the installer. hopefully Update 13 will have all the files and install them correctly. 

Hi Joseph,

You may be right about this.  I think with an installer, the issue goes away.

Here is the production version of LumenRT Update 13.  Can you try installing this and see if the Revit export works:

https://bentley.sharefile.com/d-s2f3186d13404e65b

Any new developments on this. Tevit 2019 was loaded first and the I have loaded OpenBuildings w/ LumenRT v12 and the Connection Client has run the most recent update to LumentRT v13 and The add in still doen't show in Revit 2019. Thoughts?

rv_LumenRT2019.dll can be found in the following folder:

C:\Program Files\Bentley\Bentley LumenRT CONNECT Edition - Update 13\LumenRT\Export\Revit

However, I don't believe the DLL will not be loaded into Revit without a .addin file to act as a manifest file. The .addin file is written in XML and looks something like:

<?xml version="1.0" encoding="utf-8"?>
<RevitAddIns>
<AddIn Type="Application">
<Name>Model Review</Name>
<Assembly>C:\Program Files\Autodesk\Revit Model Review 2019\ModelReview.dll</Assembly>
<AddInId>8e406bfc-b416-4ecb-b639-c290ca3181f2</AddInId>
<FullClassName>BIMStandardsManager.ExternalApp</FullClassName>
<VendorId>ADSK</VendorId>
<VendorDescription>Autodesk, subscription.autodesk.com</VendorDescription>
</AddIn>
</RevitAddIns>

rv_LumenRT2019.dll can be found in the following folder:

C:\Program Files\Bentley\Bentley LumenRT CONNECT Edition - Update 13\LumenRT\Export\Revit

However, I don't believe the DLL will not be loaded into Revit without a .addin file to act as a manifest file. The .addin file is written in XML and looks something like:

<?xml version="1.0" encoding="utf-8"?>
<RevitAddIns>
<AddIn Type="Application">
<Name>Model Review</Name>
<Assembly>C:\Program Files\Autodesk\Revit Model Review 2019\ModelReview.dll</Assembly>
<AddInId>8e406bfc-b416-4ecb-b639-c290ca3181f2</AddInId>
<FullClassName>BIMStandardsManager.ExternalApp</FullClassName>
<VendorId>ADSK</VendorId>
<VendorDescription>Autodesk, subscription.autodesk.com</VendorDescription>
</AddIn>
</RevitAddIns>

OK, with a bit of reverse engineering, generating  a GUID, and guess work on the namespaces in the rv_LumenRT2019.dll using Visual Studio to sleuth them.., my son and I created a working manifest file. the following text can be added/pasted into a .addin file to create a working manifest:

<?xml version="1.0" encoding="utf-8"?>
<RevitAddIns>
   <AddIn Type="Application">
      <Name>Model Review</Name>
      <Assembly>C:\Program Files\Bentley\Bentley LumenRT CONNECT Edition - Update 13\LumenRT\Export\Revit\rv_LumenRT2019.dll</Assembly>
      <AddInId>d452173f-aad5-4062-8823-318474266d45</AddInId>
      <FullClassName>LumenRT.LumenRTApp</FullClassName>
      <VendorId>BSI</VendorId>
      <VendorDescription>Bentley Systems, Incorporated</VendorDescription>
   </AddIn>
</RevitAddIns>

I named my file LumenRTExport.addin and placed it in the following folder:

C:\ProgramData\Autodesk\Revit\Addins\2019

I should add one more thing...

The AddInId (GUID) is specific to the DLL. It is used to register each unique DLL in the Windows Registry. So if someone wanted to install the plugin for multiple version (years) of Revit, then each Bentley DLL for each Revit version would require a unique AddInId (GUID). To generate a unique GUID is quite easy using Windows PowerShell. The syntax is as follows:

[guid]::NewGuid()