Troubleshooting "GT Designer License Not Found" Error: Causes and Solutions
Right-click the service again, select , and change the Startup type to Automatic . 3. Re-Register the Product ID
Ensure the license manager service (like FlexNet) is running on the server. Sometimes manually stopping and restarting the server service resolves the "No such feature exists" error. GT Title Will not open - vMix Forums
If you format a PC or move to a new machine and run only the update installer, it will install the files but throw the "License not found" error because it cannot find the original Product ID.
Run the original installer ( EnvMEL\Setup.exe first if present in your installation media, as this sets up the MELSOFT operating environment).
"GT Designer License Not Found."
If you are a automation engineer, technician, or developer using Mitsubishi Electric's HMI software, you may have encountered the frustrating error: (often appearing within GT Works3 or GT Designer3).
Windows security settings sometimes prevent applications from accessing the specific registry folders where Mitsubishi stores license data.
Open the Windows and navigate to Programs and Features .
If your activation data has been wiped or corrupted, re-entering your Product ID (serial number) will rebuild the license paths. Open the Windows . Navigate to the MELSOFT Application folder.
Knowing the exact version of GT Works 3 you are using can help us provide a more precise solution.