[CMake] CTest: Cannot find any coverage files. Ignoring Coverage request.

[emeplease]

Hi,  I am going to enable coverage test in my project,

I have enabled the following compile options:
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CXXFLAGS="-g -O0 -Wall -Wshadow \
  -Wunused-function -Wunused -Wno-system-headers \
  -Wno-deprecated -Woverloaded-virtual -Wwrite-strings -fprofile-arcs \
  -ftest-coverage" \
CFLAGS="-g -O0 -Wall -W -fprofile-arcs -ftest-coverage" \
LDFLAGS="-fprofile-arcs -ftest-coverage" \
-----------------------------------------------------------------------------------------------

Inside DartConfiguration.tcl :
CoverageCommand: /usr/bin/gcov

-----------------------------------------------------------------------------------------------
Inside CMakeCache.txt :
COVERAGE_COMMAND:FILEPATH=/usr/bin/gcov

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However, I am not able to use coverage test:

Performing coverage
  Cannot find any coverage files. Ignoring Coverage request.



Thank you very much.


Regards,
Joseph