"is not a MEX file" error when compiling a simulink model as s-function on a network share

When trying to compile a simulink submodel "mySub" as s-function, with the working directory "U:\Work" on a network share "U:", I get the following error message:

Top model targets built:

Model Action Rebuild Reason

================================================

mySub Failed ForceTopModelBuild was enabled.

0 of 1 models built (0 models already up to date)

Build duration: 0h 0m 14.992s

'U:\Work\mySub_sf.mexw64' is not a MEX file. For more information, see File is not a MEX file.

When performing the compilation on "c:\work", it works.

When the copying the s-function and mex-file to the network direcory and runnings the model with the s-function, I again get an error message

Error while obtaining sizes from MEX S-function 'mySub_sf' in 'mytest_sfctn/mySub/mySub_sfcn'.

Caused by:

• Invalid MEX-file 'U:\Work\mySub_sf.mexw64': access denied

My computer has Windows 10 (64-bit).

How can I compile a submodel on a network share, and execute a s-function on a network share? Or is there another hidden reason for the problem, like e.g. network latencies or a virus scanner interference?

Answer 1

[Frank Hofmann]

The problem is resoved. It had to do with some configuration of the network share, which actually was a samba share.