How can I sovle this error in building a simulink model using M-target for Bachmann PLC?

Why do I receive an " Undefined function or variable 'auto'"error?

problem discription:

The call to m1target_make_rtw_hook, during the before_make hook generated the following error:

Undefined function or variable 'auto'.

The build process will terminate as a result.

this simulink model is builded for bachmann PLC,what is the solution?Thank you very much.

[Kamal Baghirli]

Hello. If you have found what the problem was, can you share it here after 10 years? :D

[Carlos]

I also need help with this :(

[Alexander]

We might had the same issue in the past, but do not know the exact solution anymore, but maybe try these:

cs = getActiveConfigSet(bdroot);
try, get_param(cs,'SystemTargetFile'), end   % should be 'm1target.tlc'
try, get_param(cs,'Toolchain'), end
try, get_param(cs,'TemplateMakefile'), end

if any of those prints "auto", try to set it explicitly in the model configuration:

1. Check that only one configuration exists for your model (+ delete inactive configurations)
2. Use explicit toolchain / TMF (no “auto”)

Open Configuration Parameters → Code Generation:

• System target file: set explicitly to m1target.tlc.
• If you have the Toolchain workflow: pick the Bachmann toolchain explicitly (do not leave “Auto”).
• If you have the older Template makefile workflow: pick the M-Target TMF explicitly (not “auto”/blank).

--> Else try to search for mask or model parameter (auto) without quotes in any block. Search with commenting out blocks. Once we had an issue with "parameter" inside a misconfigured simulink block.