Pre-cog error

Hey i installed gnuradio 3.6.5, grextras and precog, gnuradio and
are running just fine i even made a couple of basic examples and
is just as i expected.
However pre-cog seems to have a problem with hier block “radio-hier”,
i open the GRC simple_trx i get the following error:

Loading: “/home/sdr-cognitivo/pre-cog/examples/simple_trx.grc”

Error: Block key “radio_hier” not found in Platform - grc(GNU Radio

Error: Connection between radio_hier_0(0) and simple_mac_0(0) could not
be made.
source block id “radio_hier_0” not in block ids

Error: Connection between simple_mac_0(0) and radio_hier_0(0) could not
be made.
sink block id “radio_hier_0” not in block ids


how can i added the hier blocks to gnuradio? i guess that’s how i would
solve it because i run the terminal command as pre-cog says this is what
sdr-cognitivo@sdrcognitivo-VPCEG33FL:~/pre-cog/examples$ python --radio-addr 85 --dest-addr 86 --port 12345
Traceback (most recent call last):
File “”, line 8, in
IOError: [Errno 2] No such file or directory:

i supposed i need to chance some paths for my own folders right?
thanks in advanced for your time and responses

Open radio_hier.grc and just generate the file.

On Mon, Jun 17, 2013 at 5:25 PM, Gonzalo Flores De La Parra <