Diagnose Qt License Service
Qt License Service is a background process that handles license reservation requests. Qt License Service is started on-demand and normally it doesn't require any actions or maintenance from the user.
However, if you're having issues with license reservations, try diagnosing the problem with these steps.
If you have a specific issue, see Troubleshooting Qt License Service.
Check Qt License Service logs
Qt License Service keeps a log of its operation. To investigate possible issues, check the logs from the Tools/LicenseService/ directory.
If the excisting info level logs do not provide any details about the issue, increase the logging level:
- Start Qt License Service with debug or silly logging level.
qtlicd --mode cli --log-level silly
- Try making license reservations (for example, start Qt Creator).
- Check the logs.
- Start Qt License Service with debug or silly logging level.
qtlicd --mode cli --log-level silly
- Try making license reservations (for example, start Qt Creator).
- Check the logs.
- Start Qt License Service with debug or silly logging level.
qtlicd.exe --mode cli --log-level silly
- Try making license reservations (for example, start Qt Creator).
- Check the logs.
To control the logging feature, use the following options.
| Option | Description |
|---|---|
--log-level <none|error|warning|info|debug|silly> | Sets the logging level |
--nologfile | Disables logging in the file |
--nostdout | Disables logging in stdout |
Check server address
If you're using an on-premises Qt License Server, make sure you have configured the server address correctly. For more information, see Configure the server address.
Check local license cache
Check if there are issues in the Qt License Service license cache. For more information, see License cache.
Verify Qt License Service installation
Make sure the Qt License Service installation is registered correctly. Open the installations.ini file and check that it contains the installation path. For more information, see Configuration file locations.
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