NG SPICE Simulation Error(parse.c--checkvalid): Sim.sch.sim: no such vector.

[skndungu75TT4N3]

Hi Autodesk Community,  I am doing some basic SPICE simulation and when I use examples everything simulates well but when I do a similar design using the components from the ngspice lib I keep getting this error

Circuit: * spicenetlist

Doing analysis at TEMP = 0.000000 and TNOM = 27.000000

Warning: v_vcur_1: has no value, DC 0 assumed

No. of Data Rows : 1

Error(parse.c--checkvalid): Sim.sch.sim: no such vector.

Note: No ".plot", ".print", or ".fourier" lines; no simulations run

My design is as follows

I will appreciate any help handed to this, Thanks

[edpataky]

Your schematic in general it looks perfectly fine .. can you post the full netlist from the netlist tab in the simulation dialog?  .... I am wondering if the FET has a model mapped to it or not .. if i can see the netlist i am sure i can find the problem 

[edpataky]

Please attach the sch file if possible

[skndungu75TT4N3 · Accepted solution]

Hi Thanks for the reply, I later found out the problem was with the way I was saving my schematic, it was Model Sim.sch, but the simulator was looking for Sim.sch hence finding none, I therefore had to remove the spacing in the naming and the simulator was happy.

[edpataky · Accepted solution]

Yes that was going to be the next question ... we need to add a check for that, but the way the simulator processes things, design files and model files need to not have any spaces in the names .. glad you found it .. i will make sure we add a check for this, or make sure spaces are not an issue

[Anonymous]

Can you help me on solving this issue...??

I didn't understand what exactly you did

Thanks in Advance

[skndungu75TT4N3]

hi @Anonymous 

what's the name of your saved schematic