Possible cause: A previous Lumion installation was foundĪ previous Lumion installation with the same version number was found but could not be uninstalled, for example Lumion Pro Trial.Ģ.1: To proceed, please uninstall the previous installation of Lumion before running the new Lumion installer again.Ģ.2: If the problem persists, please right-click on Lumion_(VERSION)_LUM(VERSION).exe which is located in the same location as the Lumion Download Manager and select Run as administrator:Ģ.3: If this does not resolve the problem, please cite 'installation error 1' when you request technical support:ģ.
Please follow the instructions in the section that corresponds to the error message you are seeing when trying to install Lumion.Ģ. The possible causes below refer to Lumion 9.0.2 and newer versions.