Difference between revisions of "ModuleNotFoundError"

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(reorganize and clarify)
(tweak for OSX)
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*  on a terminal screen, enter <code>gnuradio-config-info --prefix</code>
*  on a terminal screen, enter <code>gnuradio-config-info --prefix</code>
then use that prefix in place of <code>{prefix}</code> in the following commands
then use that prefix in place of <code>{prefix}</code> in the following commands
= Mac OS X / macOS =
See the [https://wiki.gnuradio.org/index.php/MacInstall#Typical_Errors_and_Warnings MacInstall] guide for issues and settings on that OS.


= Setting PYTHONPATH =
= Setting PYTHONPATH =


== Linux-based systems and MacOSX / macOS ==
== Linux-based systems ==
-  For MacOSX / macOS, most Debian / Ubuntu (and derivative) systems, and most other 32-bit Unix/Linux systems, use:
-  For most Debian / Ubuntu (and derivative) systems, and most other 32-bit Unix/Linux systems, use:
<pre>
<pre>
export PYTHONPATH={prefix}/lib/python3/dist-packages:{prefix}/lib/python3/site-packages:$PYTHONPATH
export PYTHONPATH={prefix}/lib/python3/dist-packages:{prefix}/lib/python3/site-packages:$PYTHONPATH
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export LD_LIBRARY_PATH={prefix}/lib64:$LD_LIBRARY_PATH
export LD_LIBRARY_PATH={prefix}/lib64:$LD_LIBRARY_PATH
</pre>
</pre>
== MacOSX / macOS ==
On MacOSX / macOS, the library search path is set primarily by the environment variable DYLD_LIBRARY_PATH. Because of the way the OSX dynamic library loader works, this variable works differently than on Linux. Its primary purpose is in finding libraries in a local path, such as when testing software before installing it, or inside an application. <b>We strongly recommend against setting this variable globally.</b>

Revision as of 16:25, 28 January 2020

When you start gnuradio-companion or execute grcc, if you get this, or a similar, error message:

ModNotFound.png

then put the following 'export' commands in your ~/.bashrc or ~/.profile or ~/.bash_aliases file and restart your terminal.

Determine your installation prefix

If you don't know or remember your installation prefix, perform the following step:

  • on a terminal screen, enter gnuradio-config-info --prefix

then use that prefix in place of {prefix} in the following commands

Mac OS X / macOS

See the MacInstall guide for issues and settings on that OS.

Setting PYTHONPATH

Linux-based systems

- For most Debian / Ubuntu (and derivative) systems, and most other 32-bit Unix/Linux systems, use:

export PYTHONPATH={prefix}/lib/python3/dist-packages:{prefix}/lib/python3/site-packages:$PYTHONPATH

- For other 64-bit systems, use:

export PYTHONPATH={prefix}/lib64/python3/site-packages:$PYTHONPATH

Setting LD_LIBRARY_PATH

Linux-based systems

- For most 32-bit systems and most Debian / Ubuntu (and derivative) systems, use:

export LD_LIBRARY_PATH={prefix}/lib:$LD_LIBRARY_PATH

- For other 64-bit systems, use:

export LD_LIBRARY_PATH={prefix}/lib64:$LD_LIBRARY_PATH