PyRevit: Installation & Troubleshooting Add-in

PyRevit: Installation & Troubleshooting Add-in

PyRevit: Installation & Troubleshooting Add-in


When installing PyRevit you can find it in the P: drive (P:\07 SOFTWARE\pyRevit) or get the most recent version from GitHub.

There are 2 installers; one for individual use and the other for all users.



If you are the only one using Revit & PyRevit on your computer select the top Installer option.

If many users will be using Revit & PyRevit on your computer, select the bottom Installer option (Admin / All Users / %PROGRAMDATA%). This will install to the Administrator folder on the computer so all users can use it, instead of being installed for a specific user. However, it means permissions must be set for each user (see section below).

Run the installer on your machine and follow through the steps. The installer does not require Administrator privileges to your machine. You can choose a different installation path than the default as well.

Start the install




Accept the license terms




Select the destination path (this can be installed to a different location if needed).




Click Install




Once completed, Launch any of the installed Revit versions. Revit will launch a dialogue box asking for permissions to load a found add-in. Click Always Load




If you installed PyRevit to the Administrator folder instead of your local folder you will get a notification that it failed to initialize the PyRevitLoader.dll

Failed to initialize the add-in “PyRevitLoader” because the assembly “C:\Users\Administrator\App…\pyRevitLoader.dll” does not exist.



This means that permissions have not been set for PyRevit as listed above. Here is how to troubleshoot:
1. First closet Revit.

2. Verify that the pyRevitLoader.dll is on the computer by navigating to this folder:
C:\Users\administrator\AppData\Roaming\pyRevit-Master\bin\engines\IPY2711PR
If the pyRevitLoader.dll is not located there, reinstall. If it is located there, then proceed to the next step.

3. Launch Revit as an Administrator (right-click the icon, or from the Start menu, right-click and select run as administrator).

4. A security dialogue box will state that a signed add-in has been found. What do you want to do? Click Always Load



5. Close Revit.

6. Launch Revit as normal (not administrator mode).

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