The error "GT Designer License Not Found" typically points to a mismatch between the installed software components and the registered license, or corrupted configuration files
. Below is a comprehensive guide to understanding and resolving this issue. vMix Forums Understanding the Error
GT Designer (including versions GT Designer2 and GT Designer3) is the screen design software for Mitsubishi Electric's GOT (Graphic Operation Terminal) series . This software is usually bundled within the MELSOFT GT Works3 MITSUBISHI ELECTRIC Global website A "License Not Found" error can occur if:
The individual tool (like GT Designer) is launched without the parent suite being properly activated.
Local configuration files that store licensing or environment paths have become corrupted.
The software was installed from a partial update tool rather than the full installation media. vMix Forums Step-by-Step Troubleshooting 1. Clear Corrupted Configuration Files gt designer license not found
If the software was working previously and suddenly stopped, corrupted cache or configuration folders are the most likely culprits. Navigate to Local AppData : Open Windows Explorer and go to C:\Users\
: Look for folders named "GT Designer," "GT Works," or "GT Title" (common in some software variants). Rename or Delete
: Move these folders to your desktop as a backup, then try relaunching the application. The system will regenerate fresh, uncorrupted files upon startup. vMix Forums 2. Re-register the Product ID If you are using the full MELSOFT GT Works3
suite, the license key is often shared across multiple tools (GT Designer3, GT Simulator3, etc.). Mitsubishi Electric Factory Automation Malaysia Ensure you are entering the Product ID
found on your license certificate or the original DVD-ROM case. MELSOFT Environment Selection The error "GT Designer License Not Found" typically
tool (usually found in your Start Menu under Mitsubishi Electric) to ensure the correct software version and license are being prioritized. MITSUBISHI ELECTRIC Global website 3. Verify Installation Source Sometimes users mistakenly install the GT Document Update Tool
or a standalone "Data Transfer Tool" and expect it to function as the full designer. MITSUBISHI ELECTRIC Global website Full Suite Requirement : Ensure you have installed from the original GT Works3 DVD-ROM or the full downloaded installation package from the Mitsubishi Electric FA website Admin Rights : Always right-click the and select Run as Administrator
to ensure the license registry keys are correctly written to the Windows Registry. MITSUBISHI ELECTRIC Global website 4. OS Environment Settings
In some versions, specific Windows settings can interfere with how dialog boxes and license prompts appear. Font Scaling
: If your font size is set to "Large" or custom scaling in Windows, some GT Designer dialog boxes GT Designer3 (for GOT2000 / GOT1000) GT Works3
may fail to display correctly, leading to hidden errors. Set Windows scaling to 100% (Normal) Regional Settings : For older versions (GT Designer 5/6), ensure your Windows Regional Settings are set to
if you encounter "Internal error: null pointer access" at startup. MITSUBISHI ELECTRIC Global website Preventing Future License Errors Help For Data Transfer Tool - Mitsubishi Electric
Here are a few options for a social media or forum post, depending on your specific goal (e.g., asking for help vs. sharing a solution).
| Action | Detail | |--------|--------| | Contact Mitsubishi support | Provide error screenshot, license type (dongle ID or license number), and software version. | | Reinstall Windows & software | Last resort – sometimes license corruption remains after uninstall. | | Order new license | If physical dongle is dead, you need a replacement (cost involved). |
Error Message:
GT Designer License Not Found
Affected Software:
Common Causes:
Test-NetConnection -ComputerName license.server -Port 27000ps aux | grep lmgrd; view logs in /var or vendor-specified path.ping license.server and traceroute/tracert if network issues suspected.