Installing Photoshop CC 2019 getting error code 41

[rolandoz1205]

I have an Intel MBP 2019 running Big Sur. I need to install Photoshop 2019 to run some old plugins. When I run the install I immediatly get an error message "Installer was unable to access a critical file/directory. Please try installing again. Error Code -41. 

 

[Peru Bob]

See here:

https://helpx.adobe.com/creative-cloud/kb/troubleshoot-download-install-logs.html#error41