RF-Block problem....

An error occurred while running the simulation and the simulation was terminated

Caused by:

• ['RF/Configuration1/Solver Configuration']: System of equations is singular. Check the circuit topology.

When I run this circuit it was wrong.

why this error apeared in this circuit.. i made RF-Block.

and i want to know V Measured value

Should you make more RF-Block example? i think this example is not enough in simulink...