LimeSDR is not found in GNURadio using Raspberry Pi

Hi,

I am using LimeSDR-USB and doing FSK transmission. The blocks can be seen below:


I run LimeSDR in raspberry pi and even though the Lime is seen in Raspberry ports, GNURadio gives this error:
LimeSuite Sink (TX) info

##################

Connecting to device

##################

LimeSuite version: 20.10.0-g1480bfea

gr-limesdr version: 2.2.7

##################

ERROR: device_handler::open_device(): No Lime devices found.

I am using the versions as can be seen in the error. Does anyone know how to solve this?