# Control port on 3.7.8? **URL:** \ **Category:** GNU Radio\ **Created:** [May 6, 2015, 7:28pm UTC](https://www.ruby-forum.com/t/control-port-on-3-7-8/241861 "2015-05-06T19:28:31Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![Detlef\_R](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/58f4c7/32.png) [@Detlef\_R](https://www.ruby-forum.com/u/Detlef_R)\ **Post date:** [May 6, 2015, 7:28pm UTC](https://www.ruby-forum.com/t/control-port-on-3-7-8/241861/1 "2015-05-06T19:28:31Z")
After pulling the latest version of gnuradio, and remaking/installing/etc I am trying to run the application “pfb\_sync\_test.grc” in the examples directory of control port. It is giving me the following error: ================ Executing: “/home/anastas/gnuradio\_trunk/gr-blocks/examples/ctrlport/pfb\_sync\_test\_qt.py” # Using Volk machine: sse4\_1\_64\_orc ControlPort Monitor running. Traceback (most recent call last): File “/home/anastas/gnuradio\_trunk/gr-blocks/examples/ctrlport/pfb\_sync\_test\_qt.py”, line 233, in (tb.blocks\_ctrlport\_monitor\_0).start() File “/usr/local/lib64/python2.7/site-packages/gnuradio/ctrlport/monitor.py”, line 48, in start print “monitor::endpoints() = %s” % (gr.rpcmanager\_get().endpoints()) AttributeError: ‘NoneType’ object has no attribute ‘endpoints’ ctrlport.monitor received shutdown signal this is on a Fedora 19-64. Any help is greatly appreciated. thanks Achilleas ---
**Author:** ![Achilleas\_A](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/74df32/32.png) [@Achilleas\_A](https://www.ruby-forum.com/u/Achilleas_A)\ **Post date:** [May 6, 2015, 7:41pm UTC](https://www.ruby-forum.com/t/control-port-on-3-7-8/241861/2 "2015-05-06T19:41:58Z")
On Wed, May 6, 2015 at 1:27 PM, Achilleas A. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > # ControlPort Monitor running. ctrlport.monitor received shutdown signal > > this is on a Fedora 19-64. > > Any help is greatly appreciated. > > thanks > Achilleas Looks like the server isn’t being started. When you run cmake, you should see that under enabled components, you have: - gr-ctrlport \*\* thrift That tells you ControlPort is enabled and the Thrift backend will be built for it. You can also tell by looking at gnuradio/config.h to see if GR\_RPCSERVER\_ENABLED and GR\_RPCSERVER\_THRIFT are defined there. My guess is that cmake isn’t picking up Thrift. It requires version 0.9.2 to run. You can get some info on building this yourself here: [http://gnuradio.org/redmine/projects/gnuradio/wiki/ControlPort](http://gnuradio.org/redmine/projects/gnuradio/wiki/ControlPort) I also just pushed a new apache-thrift recipe to PyBOMBS today. Tom ---
**Author:** ![Achilleas\_A](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/74df32/32.png) [@Achilleas\_A](https://www.ruby-forum.com/u/Achilleas_A)\ **Post date:** [May 7, 2015, 1:28am UTC](https://www.ruby-forum.com/t/control-port-on-3-7-8/241861/3 "2015-05-07T01:28:58Z")
OK, so cmake cannot find thrift, which is reasonable because i didn’t build it… So, I followed the instructions on building thrift and configure returns … thrift 0.9.2 Building C++ Library … : no Building C (GLib) Library … : yes Building Java Library … : yes Building C# Library … : no Building Python Library … : yes Building Ruby Library … : no Building Haskell Library … : no Building Perl Library … : no Building PHP Library … : yes Building Erlang Library … : no Building Go Library … : no Building D Library … : no Building NodeJS Library … : no Building Lua Library … : no Java Library: Using javac … : javac Using java … : java Using ant … : /usr/bin/ant Python Library: Using Python … : /usr/bin/python PHP Library: Using php-config … : If something is missing that you think should be present, please skim the output of configure to find the missing component. Details are present in config.log. ========================== Is the C++ library necessary? The config.log file says that it needs boost 1.54.0 or greater, for some files. Can this be the reason the C++ library is not built? thanks Achilleas ---
**Author:** ![Achilleas\_A](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/74df32/32.png) [@Achilleas\_A](https://www.ruby-forum.com/u/Achilleas_A)\ **Post date:** [May 7, 2015, 3:55pm UTC](https://www.ruby-forum.com/t/control-port-on-3-7-8/241861/4 "2015-05-07T15:55:21Z")
On Wed, May 6, 2015 at 7:28 PM, Achilleas A. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > Building C++ Library … : no > Building D Library … : no > > The config.log file says that it needs boost 1.54.0 or greater, for some > files. Can this be the reason the C++ library is not built? > > thanks > Achilleas Here’s the Thrift webpage for the installation dependencies: > **[Apache Thrift - Index of install/](https://thrift.apache.org/docs/install/)** It /says/ it only requires Boost 1.53. The libevent and zlib are optional dependencies, but you’ll want to have the libevent, which I believe can be installed with “yum install libevent-devel” on Fedora. If it really is complaining about Boost 1.53 and saying it needs 1.54, that’s either a bug in their build script or their documentation. Tom