MATLAB: Does the build fail due to a missing dsp_rt.h file with the Signal Processing Blockset 6.1 (R14SP2)

blocksetbuilddspdsp_rt.hfailuremakenmakertwmakecfg

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.

Best Answer

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.
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