# Bugs gr-ldpc module‏ **URL:** \ **Category:** GNU Radio\ **Created:** [March 18, 2015, 5:32pm UTC](https://www.ruby-forum.com/t/bugs-gr-ldpc-module/234632 "2015-03-18T17:32:37Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![addis\_a](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/c4cdca/32.png) [@addis\_a](https://www.ruby-forum.com/u/addis_a)\ **Post date:** [March 18, 2015, 5:32pm UTC](https://www.ruby-forum.com/t/bugs-gr-ldpc-module/234632/1 "2015-03-18T17:32:37Z")
Hello, Well, I installed the gr-ldpc module using pybombs in Gnuradio v3.7.6.1, and it no error occurred during the installation. I opened the Gnuradio and searched the module in the module list, and it was there, but when I tried to add the block: ldpc\_encoder\_bb to my project, the entire project in the flow graph disappeared, like when there is an erro in the .xml file of the block. So, because of that, I tried install the module using OOT method. But I got the same results.The installation by OOT method occurred well, it was presented only some warnings during cmake process (file: log\_cmake.txt). After that, I tried to open the example 1 of this module, it looked like the module would work fine, but after I configured the project to use my alist file ( alist file example from: [http://www.inference.phy.cam.ac.uk/mackay/codes/alist.html](http://www.inference.phy.cam.ac.uk/mackay/codes/alist.html)) and executed the flow graph, the gnuradio showed me the some errors. (File: log\_gnuradio.txt) I don’t know what can be causing these errors, maybe some library or module is missing.Do you have some ideia what can be? Thanks. --------------------- log\_cmake.txt ---------------- – The CXX compiler identification is GNU 4.8.2-- The C compiler identification is GNU 4.8.2-- Check for working CXX compiler: //usr/bin/c+±- Check for working CXX compiler: //usr/bin/c++ – works– Detecting CXX compiler ABI info-- Detecting CXX compiler ABI info - done-- Check for working C compiler: //usr/bin/cc-- Check for working C compiler: //usr/bin/cc – works-- Detecting C compiler ABI info– Detecting C compiler ABI info - done-- Build type not specified: defaulting to release.-- Boost version: 1.54.0-- Found the following Boost libraries:-- filesystem-- system-- Found PkgConfig: //usr/bin/pkg-config (found version “0.26”) – checking for module ‘gnuradio-runtime’-- found gnuradio-runtime, version 3.7.7git-- Found GNURADIO\_RUNTIME: gnuradio-runtime;gnuradio-pmt – checking for module ‘cppunit’-- found cppunit, version 1.13.1-- Found CPPUNIT: //usr/lib/x86\_64-linux-gnu/libcppunit.so;dl – Found SWIG: //usr/bin/swig2.0 (found version “2.0.11”) – Found PythonLibs: //usr/lib/x86\_64-linux-gnu/libpython2.7.so (found version “2.7.6”) CMake Warning (dev) at cmake/Modules/GrSwig.cmake:25 (include): Syntax Warning in cmake code at //usr/local/src/pybombs/src/gr-ldpc/cmake/Modules/GrPython.cmake:196:44 Argument not separated from preceding token by whitespace.Call Stack (most recent call first): swig/CMakeLists.txt:28 (include)This warning is for project developers. Use -Wno-dev to suppress it. CMake Warning (dev) at cmake/Modules/GrSwig.cmake:25 (include): Syntax Warning in cmake code at //usr/local/src/pybombs/src/gr-ldpc/cmake/Modules/GrPython.cmake:196:92 Argument not separated from preceding token by whitespace.Call Stack (most recent call first): swig/CMakeLists.txt:28 (include)This warning is for project developers. Use -Wno-dev to suppress it. CMake Warning (dev) at cmake/Modules/GrSwig.cmake:25 (include): Syntax Warning in cmake code at //usr/local/src/pybombs/src/gr-ldpc/cmake/Modules/GrPython.cmake:196:100 Argument not separated from preceding token by whitespace.Call Stack (most recent call first): swig/CMakeLists.txt:28 (include)This warning is for project developers. Use -Wno-dev to suppress it. – Found PythonInterp: //usr/bin/python (found version “2.7.6”) CMake Warning (dev) at swig/CMakeLists.txt:29 (include): Syntax Warning in cmake code at //usr/local/src/pybombs/src/gr-ldpc/cmake/Modules/GrPython.cmake:196:44 Argument not separated from preceding token by whitespace.This warning is for project developers. Use -Wno-dev to suppress it. CMake Warning (dev) at swig/CMakeLists.txt:29 (include): Syntax Warning in cmake code at //usr/local/src/pybombs/src/gr-ldpc/cmake/Modules/GrPython.cmake:196:92 Argument not separated from preceding token by whitespace.This warning is for project developers. Use -Wno-dev to suppress it. CMake Warning (dev) at swig/CMakeLists.txt:29 (include): Syntax Warning in cmake code at //usr/local/src/pybombs/src/gr-ldpc/cmake/Modules/GrPython.cmake:196:100 Argument not separated from preceding token by whitespace.This warning is for project developers. Use -Wno-dev to suppress it. – Found Doxygen: //usr/bin/doxygen (found version “1.8.6”) CMake Warning (dev) at cmake/Modules/GrSwig.cmake:182 (include): Syntax Warning in cmake code at //usr/local/src/pybombs/src/gr-ldpc/cmake/Modules/GrPython.cmake:196:44 Argument not separated from preceding token by whitespace.Call Stack (most recent call first): swig/CMakeLists.txt:47 (GR\_SWIG\_INSTALL)This warning is for project developers. Use -Wno-dev to suppress it. CMake Warning (dev) at cmake/Modules/GrSwig.cmake:182 (include): Syntax Warning in cmake code at //usr/local/src/pybombs/src/gr-ldpc/cmake/Modules/GrPython.cmake:196:92 Argument not separated from preceding token by whitespace.Call Stack (most recent call first): swig/CMakeLists.txt:47 (GR\_SWIG\_INSTALL)This warning is for project developers. Use -Wno-dev to suppress it. CMake Warning (dev) at cmake/Modules/GrSwig.cmake:182 (include): Syntax Warning in cmake code at //usr/local/src/pybombs/src/gr-ldpc/cmake/Modules/GrPython.cmake:196:100 Argument not separated from preceding token by whitespace.Call Stack (most recent call first): swig/CMakeLists.txt:47 (GR\_SWIG\_INSTALL)This warning is for project developers. Use -Wno-dev to suppress it. CMake Warning (dev) at python/CMakeLists.txt:23 (include): Syntax Warning in cmake code at //usr/local/src/pybombs/src/gr-ldpc/cmake/Modules/GrPython.cmake:196:44 Argument not separated from preceding token by whitespace.This warning is for project developers. Use -Wno-dev to suppress it. CMake Warning (dev) at python/CMakeLists.txt:23 (include): Syntax Warning in cmake code at //usr/local/src/pybombs/src/gr-ldpc/cmake/Modules/GrPython.cmake:196:92 Argument not separated from preceding token by whitespace.This warning is for project developers. Use -Wno-dev to suppress it. CMake Warning (dev) at python/CMakeLists.txt:23 (include): Syntax Warning in cmake code at //usr/local/src/pybombs/src/gr-ldpc/cmake/Modules/GrPython.cmake:196:100 Argument not separated from preceding token by whitespace.This warning is for project developers. Use -Wno-dev to suppress it. CMake Warning (dev) at apps/CMakeLists.txt:20 (include): Syntax Warning in cmake code at //usr/local/src/pybombs/src/gr-ldpc/cmake/Modules/GrPython.cmake:196:44 Argument not separated from preceding token by whitespace.This warning is for project developers. Use -Wno-dev to suppress it. CMake Warning (dev) at apps/CMakeLists.txt:20 (include): Syntax Warning in cmake code at //usr/local/src/pybombs/src/gr-ldpc/cmake/Modules/GrPython.cmake:196:92 Argument not separated from preceding token by whitespace.This warning is for project developers. Use -Wno-dev to suppress it. CMake Warning (dev) at apps/CMakeLists.txt:20 (include): Syntax Warning in cmake code at //usr/local/src/pybombs/src/gr-ldpc/cmake/Modules/GrPython.cmake:196:100 Argument not separated from preceding token by whitespace.This warning is for project developers. Use -Wno-dev to suppress it. --------------------- log\_gnuradio.txt-------------------------- Generating: “/home/luiz/top\_block.py” Generating: “/home/luiz/top\_block.py” Executing: “/home/luiz/top\_block.py” Traceback (most recent call last): File “/home/luiz/top\_block.py”, line 69, in tb = top\_block() File “/home/luiz/top\_block.py”, line 44, in **init** self.ldpc\_ldpc\_hier\_encoder\_bb\_0 = ldpc.ldpc\_hier\_encoder\_bb(“/home/luiz/alist/alist\_file”) File “/usr/local/src/target/lib/python2.7/dist-packages/ldpc/ldpc\_hier\_encoder\_bb.py”, line 36, in **init** encoder = ldpc.ldpc\_encoder\_bb(alist\_file) File “/usr/local/src/target/lib/python2.7/dist-packages/ldpc/ldpc\_swig.py”, line 463, in make return \_ldpc\_swig.ldpc\_encoder\_bb\_make(\*args, \*\*kwargs)RuntimeError: gr::io\_signature(3)