unsupported pickle protocol?

[Mark Ito]

Hey Experts,

Trying to build a plugin in a CentOS 7 container:

[marki@markdesk5/singC7 pi0_pol_plugin]$ scons install
scons: Reading SConscript files ...
scons: done reading SConscript files.
scons: Building targets ...
scons: *** [JEventProcessor_pi0_pol_plugin.h] ValueError : unsupported pickle protocol: 4
scons: building terminated because of errors.

Anyone ever seen this?

  -- Mark

[Mark Ito]

You can find the plugin at https://github.com/markito3/pi0_pol in the directory pi0_pol_plugin

[Mark Ito]

Folks,

I finally figured this one out. All I had to do was to delete the .sconsign.dblite file in the plugin directory (i.e., the directory from which scons is invoked). Probably due to trying a build outside of the singularity container. So Fedora-appropriate info probably got encoded in the local scons database.

  -- Mark

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[Naomi Jarvis]

Same solution worked for me although I have not done anything with singularities.