Error of the Rendering Extension Installer

If the installer brings an error and does not allow installing or deleting extensions, you can solve this problem the following way:

Delete the inventory.xml file from the folder with extensions. The file should be located by the path similar to C:\Program Files (x86)\Perpetuum Software\Perpetuum Soft Rendering Extension. 

After that, try to run the installer again. 

If this does not help, please try to install extensions manually following the instructions of this article:

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