topic Re: NG SPICE Simulation Error(parse.c--checkvalid): Sim.sch.sim: no such vector. in EAGLE Forum

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

skndungu75TT4N3 — Tue, 07 May 2019 08:17:09 GMT

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

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

edpataky — Wed, 08 May 2019 19:02:36 GMT

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

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

edpataky — Wed, 08 May 2019 23:36:49 GMT

Please attach the sch file if possible

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

skndungu75TT4N3 — Thu, 09 May 2019 05:25:35 GMT

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.

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

edpataky — Thu, 09 May 2019 16:14:14 GMT

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

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

Anonymous — Fri, 02 Oct 2020 10:42:07 GMT

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

I didn't understand what exactly you did

Thanks in Advance

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

skndungu75TT4N3 — Fri, 02 Oct 2020 12:12:11 GMT

hi @Anonymous

what's the name of your saved schematic