how to simulate 555 timer based astable multivibrator with esim?

i want to simulate the esim simulation with 555 timer for astable operation  but it is showing

the error during kicad to ngspice conversion
"Your schematic contain unknown model lm555n" how to solve this problem??????

eSim 19-10-17, 1:11 p.m. anil
Hi, Did you use the lm555n subcircuit available in eSim?
23-10-17, 11:32 a.m. athulgeorge
If you haven't added the subcircuit please add that. Also please refer this example.

23-10-17, 11:47 a.m. athulgeorge

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