Why does my build fail due to a missing dsp_rt.h file with the Signal Processing Blockset 6.1 (R14SP2)?

I have the following products installed on my machine:

MATLAB Version 7.0.4 (R14SP2)

Simulink Version 6.2 (R14SP2)

Fixed-Point Toolbox Version 1.2 (R14SP2)

Real-Time Workshop Version 6.2 (R14SP2)

Real-Time Workshop Embedded Coder Version 4.2 (R14SP2)

Signal Processing Blockset Version 6.1 (R14SP2)

Signal Processing Toolbox Version 6.3 (R14SP2)

Simulink Fixed Point Version 5.1 (R14SP2)

When I try to build, I sometimes receive errors:

 Unable to find function getfilebyname in rtwmakecfg.m

reported as a warning during the creation of the make file.

 Unable to find or open dsp_rt.h during compilation

reported as an nmake error during compilation.

Answer 1

[MathWorks Support Team]

This enhancement has been incorporated in Release 14 Service Pack 3 (R14SP3). For previous product releases, read below for any possible workarounds:

We have verified that there is a bug in Signal Processing Blockset 6.1 (R14SP2) in the way that it handles code generation with a certain set of installed products. This behavior is very sporadic and only happens with certain installations.

To work around this issue, you can try either of the following:

1. Run:

rehash toolboxreset

2. Try reinstalling MATLAB and other products.