Problems startup RTL-SDR on Linux

ik0ozb@...
 

Hi, I installed the latest version (4.13.0) of the software in binary format for Ubuntu 18.04.
After configuring the program and adding my RTL-SDR I have the following message
"Could not start sample source"
I tried the stick with GQRX and it works perfectly.

What's the problem?

73 de IK0OZB op.Luigi

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