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=== I installed GNU Radio, but some components seem to be missing. ===
 
=== I installed GNU Radio, but some components seem to be missing. ===
  
Missing components are usually seen because blocks are missing from GRC. This usually only happens when you did a source build.
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Missing components are usually seen because blocks are missing from GRC. This usually only happens when you did a source build. After running cmake, you might see something like this at the end of CMake's output (this list is heavily cropped for simplicity, it is much longer in reality):
  
You can check the installed GNU Radio components by running <code>gnuradio-config-info --enabled-components</code> (Or, for a nicer formatting, <code>gnuradio-config-info --enabled-components | sed 's/;/\n/g'</code>).
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<pre>-- ######################################################
 
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-- # Gnuradio enabled components                        
After running cmake, you might see something like this at the end of CMake's output (this list is heavily cropped for simplicity, it is much longer in reality):
 
 
 
<pre>
 
-- ######################################################
 
-- # Gnuradio enabled components
 
 
-- ######################################################
 
-- ######################################################
 +
--  * python-support
 
--  * testing-support
 
--  * testing-support
--  * python-support
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--  * volk
[…………]
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--   * doxygen
--  * gr-vocoder
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--  * gnuradio-runtime
--  * * codec2
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--  * gr-blocks
--  * * freedv
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--  * gnuradio-companion
--  * * gsm
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--  * gr-fec
 +
--  * gr-fft
 +
--  * gr-filter
 +
--  * [...]
 +
--
 
-- ######################################################
 
-- ######################################################
-- # Gnuradio disabled components
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-- # Gnuradio disabled components                      
 
-- ######################################################
 
-- ######################################################
 
--  * gr-ctrlport
 
--  * gr-ctrlport
 
--  * gr-dtv
 
--  * gr-dtv
 
--  * gr-atsc
 
--  * gr-atsc
</pre>
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--  * gr-wxgui</pre>
 
If the components you are missing are listed under the 'disabled' components, there's your problem.<br />
 
If the components you are missing are listed under the 'disabled' components, there's your problem.<br />
 
There are two reasons why components are disabled:<br />
 
There are two reasons why components are disabled:<br />

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