sir, again I am getting some error. I am building a block using python. I edited all the related files like QA code file, python file, xml file. After that I changed the directory to the same build directory which was previously made and used command$ cmake -DCMAKE_INSTALL_PREFIX=/opt/local.
But it is showing error like"The source directory "/Users/kundankumar/gr-howto/build" does not appear to contain CMakeLists.txt.". what should I do?