CityEngine 2012.1 authorization fails with the error: 7109:Invalid activation ID

Description

CityEngine 2012.1 authorization fails with the following error if ArcGIS Desktop 10.0 is present on the same machine:
 

Error:   
"7109:Invalid activation ID: <authorization number>"

Cause

This error can occur when installing CityEngine 2012.1 on a system that has ArcGIS Desktop 10.0 installed.

Workaround

Note:
The bin folder location may vary based upon the installation path used.

1. Go to Start > All Programs > Accessories > Command Prompt.

• For 32-bit installations: At the command prompt type:

  cd C:\program files (x86)\esri\cityengine\bin

• For 64-bit installations: At the command prompt type:

  cd C:\program files\esri\cityengine\bin

2. Run softwareauthorization.exe by typing the following command:

   softwareauthorization.exe –s –lif *.prvc –ver 10.1 –verbose

   
   This brings up the Software Authorization Wizard and allows the user to complete authorization.