Article - CS23512
Error "(-21): License file does not support this version" when launching Flex-enabled applications
Modified: 05-Sep-2025
Applies To
- Pro/ENGINEER and Creo Elements/Pro Wildfire to Wildfire 5.0
- Creo Parametric 1.0 to 12.4
- Mathcad 14.0 to 15.0
- Mathcad Prime 1.0 to 11.0
- PTC Arbortext Editor 6.0 to 8.2
- Relex Enterprise Edition 2011
- Relex Team Edition 2011
- Windchill Quality Solutions Enterprise Edition 10.0 to 10.2
- Windchill Quality Solutions Team Edition 10.0 to 10.2
- Creo View 1.0 to 11.1
- Creo Illustrate 1.0 to 11.1
- Arbortext IsoDraw CADprocess 6.1 to 7.4
Description
- Error output will display similar to the following depending on the specific PTC application:
- Error: (-21) License file does not support this version
- Error: -21, 126: License file does not support this version
- FLEXnet Licensing checkout error: License file does not support this version
- FLEXnet Licensing checkout error: -21,126
- Unable to acquire license error -21 License file does not support this version
- Compare operation failed with error code: <-8> Error info: Compare license issue
- Getting error (-21) even though the license is up to date
This is a printer-friendly version of Article 23512 and may be out of date. For the latest version click CS23512