Importerror no module named howto

Hi,
I just started the gnuradio project.
I followed the tutorial online to build a modules.
http://gnuradio.org/redmine/projects/gnuradio/wiki/OutOfTreeModules
http://gnuradio.org/redmine/projects/gnuradio/wiki/TutorialsDebugging
I tried the command mentioned in these two page.
but I still got importerror no module named howto

How should I make python test_gdb.py works

Hi,
The problem in detail is
http://gnuradio.org/redmine/projects/gnuradio/wiki/OutOfTreeModules
Using CMake
If you’ve never used CMake before, this is good time to give it a try.
The typical workflow of a CMake-based project as seen from the command
line is this:

$ mkdir build # We’re currently in the module’s top directory
$ cd build/
$ cmake …/ # Tell CMake that all its config files are one dir up
$ make # And start building (should work after the previous
section)

when I reach to command make:
it will show a lot of errors on screen.
then make test don’t work

so I still got importerror no module named howto