# Configuration incomplete , errors occur!

**URL:** <https://www.ruby-forum.com/t/configuration-incomplete-errors-occur/240856>\
**Category:** GNU Radio\
**Created:** [May 3, 2014, 6:22am UTC](https://www.ruby-forum.com/t/configuration-incomplete-errors-occur/240856 "2014-05-03T06:22:54Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![musicdenotation](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/ea666f/32.png) [@musicdenotation](https://www.ruby-forum.com/u/musicdenotation)\
**Post date:** [May 3, 2014, 6:22am UTC](https://www.ruby-forum.com/t/configuration-incomplete-errors-occur/240856/1 "2014-05-03T06:22:54Z")

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I am installing GNU radio using this command

wget [http://www.sbrac.org/files/build-gnuradio](http://www.sbrac.org/files/build-gnuradio) && chmod a+x  
./build-gnuradio && ./build-gnuradio --verbose  
But I found at the end of the installation an error (after 2 hours from  
beginning of installation during building of extra modules )

Building extra module grextras  
– The CXX compiler identification is GNU  
– The C compiler identification is GNU  
– 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/gcc  
– Check for working C compiler: /usr/bin/gcc – works  
– Detecting C compiler ABI info  
– Detecting C compiler ABI info - done  
– Build type not specified: defaulting to release.  
– Boost version: 1.48.0  
– checking for module ‘volk’  
– found volk, version 0.1  
– Found VOLK: /usr/local/lib/libvolk.so  
– checking for module ‘gruel’  
– package ‘gruel’ not found  
– Could NOT find GRUEL (missing: GRUEL\_LIBRARIES GRUEL\_INCLUDE\_DIRS)  
– checking for module ‘gnuradio-core’  
– package ‘gnuradio-core’ not found  
– Could NOT find GNURADIO\_CORE (missing: GNURADIO\_CORE\_LIBRARIES  
GNURADIO\_CORE\_INCLUDE\_DIRS)  
CMake Error at CMakeLists.txt:112 (message):  
Gruel required to compile extras  
– Configuring incomplete, errors occurred!  
make: \*\*\* No targets specified and no makefile found. Stop.  
make: \*\*\* No rule to make target `install'. Stop. Done function extras at: Sat May 3 06:02:03 EET 2014 Starting function mod_groups at: Sat May 3 06:02:03 EET 2014 make: ***No targets specified and no makefile found. Stop. make:*** No rule to make target `install’. Stop.  
Done function extras at: Sat May 3 06:02:03 EET 2014

Also when I run then GNURADIO in terminal , I got this line: XML parser:  
Found 1 erroneous XML file while loading the block tree (see  
“Help/Parser  
errors” for details)

sara@sara-Inspiron-N5010:~$ gnuradio-companion  
Warning: Block key “blocks\_ctrlport\_monitor\_performance” not found when  
loading category tree.  
Warning: Block key “blocks\_ctrlport\_monitor\_performance” not found when  
loading category tree.  
linux; GNU C++ version 4.6.3; Boost\_104800; UHD\_003.007.001-14-g1d2e8d39

\<\<\< Welcome to GNU Radio Companion 3.7.3 \>\>\>

XML parser: Found 1 erroneous XML file while loading the block tree (see  
“Help/Parser errors” for details)

Showing: “”

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**Author:** ![Sara\_ChSSrif](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/7ba0ec/32.png) [@Sara\_ChSSrif](https://www.ruby-forum.com/u/Sara_ChSSrif)\
**Post date:** [May 3, 2014, 4:25pm UTC](https://www.ruby-forum.com/t/configuration-incomplete-errors-occur/240856/2 "2014-05-03T16:25:15Z")

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On 05/03/2014 12:21 AM, Sara Chérif wrote:

> – Check for working CXX compiler: /usr/bin/c++  
> – found volk, version 0.1  
> – Configuring incomplete, errors occurred!  
> “Help/Parser errors” for details)
> 
> * * *
> 
> Discuss-gnuradio mailing list  
> [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)  
> [Discuss-gnuradio Info Page](https://lists.gnu.org/mailman/listinfo/discuss-gnuradio)  
> The gr-extras code hasn’t been updated for GR3.7, and so, won’t build  
> under 3.7. But it’s not a critical subsystem, so its failure to build  
> won’t  
> cause the rest of the build to fail.

The errors about “blocks\_ctrlport\_monitor” are “normal”, in that they  
are showing up because the XML for them is included even when the  
underlying  
subsystem code doesn’t get built (which it won’t unless you have all  
the pre-requisites required for ctrlport already installed).