Hello dear community,
I am trying to start the RFEM6 server with the following command:
.\RFEM6Server.exe --email=example@example.org --password=123 --license=000005-25 --start-grpc-server=9000
Then the following error appears:
Expected behavior:
- The RFEM6 server should start and provide the gRPC server on port 9000.
Actual behavior:
- An error occurs. (See screenshot)
What I have already tried:
- Update to RFEM 6.12.0006
- Search documentation: dlubal.com | 500: Internal server error
Info
- RFEM version: 6.11.0011
- RFEM version: 6.12.0006
Question to the community:
Has anyone had experience starting the RFEM6 server via the command line and can tell me why this error occurs? Are there special requirements or known issues with the parameter --start-grpc-server?
Under RFEM 6.07, starting the server (then with the SOAP API) worked exactly like this.

