Qcc License Check Failed Official
The "QCC License Check Failed" error can be frustrating, but it's often resolvable with the right troubleshooting steps. By understanding the causes of this error and following the tips outlined in this article, you should be able to resolve the issue and get back to developing or using Qt-based applications. If you're still experiencing issues, don't hesitate to reach out to Qt support or community channels for further assistance.
If these preliminary checks do not yield a solution, the troubleshooting must deepen. System administrators often need to inspect the license server logs to see if the request from the QCC compiler is even reaching the server. Restarting the license manager service is a common remedy for stalled daemons. In cases where hardware changes have occurred, the user must contact the software vendor to re-host the license, a process that involves generating a new license file tied to the new hardware identifiers. It is also imperative to verify environment variables, ensuring that the operating system knows exactly where to look for the license file, whether it is stored locally on the disk or remotely on a dedicated server.
The evaluation period has ended, or the license key was entered incorrectly.
Navigate to your QNX installation directory and run: source qnxsetup.sh Use code with caution. Windows: Open the command prompt and run: qnxsetup.bat Use code with caution. qcc license check failed
Did this error start after a ?
If you are using a network license or a locked license, ensure the license manager service is running. Check for lmgrd processes. Restart the license services if necessary. Summary of Solutions Re-configure or set $QNX_CONFIGURATION Expired Trial/Sub Renew via QNX Software Center Environment Variable Remove $QNX_CONFIGURATION from global system settings License Service Down Restart FLEXnet licensing services
The error message typically occurs within the QNX Software Development Platform (SDP) environment when the compiler ( qcc ) is unable to verify a valid development license. This issue can halt the build process for embedded systems and real-time operating systems (RTOS) like those used in automotive or industrial applications. Common Causes of QCC License Failure The "QCC License Check Failed" error can be
Test the connection to the license server port using a tool like ping or telnet: telnet license_server_ip port_number Use code with caution.
| Cause | Description | |-------|-------------| | Missing local license file | license.dat or *.lic not placed in the required directory | | Invalid license key | Corrupted or incorrectly generated license | | Expired license | Time-limited evaluation license has expired | | Wrong license server address | Floating license cannot reach the server (port/hostname) | | Environment variables not set | LM_LICENSE_FILE , ADK_LICENSE_FILE , or QCC_LICENSE_FILE missing or incorrect | | Firewall / network blocking | License server port (e.g., 27000–27009) blocked | | Host ID mismatch | License locked to a different MAC address or disk serial number | | Multiple conflicting licenses | Old or invalid license files taking precedence |
Sometimes cached build files hold onto old authentication tokens. If these preliminary checks do not yield a
For a software called , for example, the solution is to delete the corrupted data in the Software Authorization Directory and then re-enter the license code. For other software, look for license cache files.
Did this happen after a or software update ?
: Check your home directory for hidden license files (e.g., .qt-license or QNX-specific equivalents) and move them to a backup location before re-running the activation tool.
The qcc command is a core utility of the QNX SDP, acting as a compiler and linker driver. It is designed to verify a valid software license before executing its core functions. When you run qcc , it performs a license check against an activated license stored on your system or a network license server. If this verification process fails for any reason, you are presented with the "license check failed" message, and the program will not proceed to compile your code.
