Bug: ArcGIS Pro licensing authorization failed
Attempts to authorize ArcGIS Pro Single Use licensing fail if ArcGIS Desktop 10.0 or ArcGIS for Desktop 10.5 is installed on the same system.
In a situation where ArcGIS Desktop 10.0 or 10.5 is installed on the same machine as ArcGIS Pro, the Software Authorization Wizard for Pro sends the wrong information to the receiving authorization server, causing an authorization failure.
Upgrade to ArcGIS Pro 1.3. ArcGIS Pro 1.3 works with all versions of ArcGIS Desktop 10.x.