How to solve the "No rule to make target `.refresh', needed by `ert_main.o.opt'. Stop." when I use Embeded Coder to build generated C code?

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李 杰义
李 杰义 2021-5-20
回答： Shivam Lahoti 2024-10-30，10:51
Hi,
When I try to use RTW demo to build the model with Embeded Coder it appears this error. Could you tell me where the fault is? Thanks!
C:\Users\Jay\Desktop\TC1782_demo\tasking_demo_sumdiff_tc_rtw>set MATLAB=C:\Program Files\Polyspace\R2019b C:\Users\Jay\Desktop\TC1782_demo\tasking_demo_sumdiff_tc_rtw>"C:\Program Files\Polyspace\R2019b\bin\win64\gmake" -f tasking_demo_sumdiff.mk GENERATE_ASAP2=0 ISPROTECTINGMODEL=NOTPROTECTING
gmake: *** No rule to make target `.refresh', needed by `ert_main.o.opt'. Stop.
Error(s) encountered while building "tasking_demo_sumdiff"

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回答（1 个）

Shivam Lahoti
Shivam Lahoti 2024-10-30，10:51
Hi,
The error "No rule to make target" is typically thrown by the make/gmake build automation tool because it can't find the instructions on how to create a particular file or target. This can happen for several reasons.
Please refer the following MATLAB Answer to understand more about this issue and approaches adopted to resolve this issue:
https://www.mathworks.com/matlabcentral/answers/356266-failed-to-generate-all-binary-outputs
I hope the approaches mentioned in the above-mentioned community post would help you resolve this issue.
Regards,
Shivam

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