d398a6ced2
- CitrineOS core extracted (CSMS OCPP 2.0.1) - OpenOCPP extracted (firmware OCPP 1.6J/2.0.1) - ShapeShifter library installed (pip install -e) - ShapeShifter specification extracted - EVerest extracted TODO updated with progress
73 lines
2.5 KiB
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73 lines
2.5 KiB
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#####
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Q & A
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#####
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This page will grow with questions from the mailing list and topics that
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come up regularly in our EVerest development life. It is always a good idea
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to have a look here when running into problems before asking for help via
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the :ref:`mailing list <exp_community_mailinglist>`.
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Errors, warnings and Troubleshooting
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====================================
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Compiling with GNU compilers
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----------------------------
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Building EVerest, you might want to use a GNU compiler. Handing over the flag
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`CMAKE_CXX_COMPILER` to `cmake` lets you do that.
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However, when using `gcc`, you might get errors about some
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`unreferenced symbols` or linking issues.
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Solution is simple: Use `g++` instead::
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cmake -D CMAKE_CXX_COMPILER=g++
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`g++` will link std C++ files automatically
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(`besides others <https://stackoverflow.com/a/173007/1168315>`_) which `gcc` won't do.
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RPC communication timeout
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-------------------------
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**In the Admin Panel, I sometimes get the following error when saving a config
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file:**
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.. code-block::
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Failed to save test_config Reason: RPC communication timeout to everest
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controller process.
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**How can I solve this?**
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In this case, the Admin Panel timeouted while waiting for the response of the
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EVerest process trying to save the file.
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The timeout is currently 2s.
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The problem with your setup might be that running EVerest as well as running
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an UI session with a browser on one hardware is just too much for it. This
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can sometimes happen on Raspberry Pies, for example.
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You may try to connect from a desktop PC to IP_OF_THE_RASPBERRY:8849. This way,
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the client-side processing of the Admin Panel javascript code gets offloaded
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from the Raspberry and it might be able to process the save faster.
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Another hint for environments with very limited ressources is to fill in the
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workspace information into the yaml config manually without using the Admin
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Panel.
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EVerest OCPP 2.0.1 setup
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------------------------
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After successfully setting up EVerest and configuring the
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:ref:`OCPP201 module <everest_modules_OCPP201>`, I get errors about
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a failed websocket connection.
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The :ref:`OCPP module <everest_modules_OCPP201>` of EVerest operates - for now - as an OCPP client.
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You will need to choose a backend system capable of OCPP 2.0.1 (like SteVe
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for OCPP 1.6).
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You may want to have a look at `<https://github.com/mobilityhouse/ocpp>`_ and
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implement message handlers to get the communication working. Or you can have
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a look at `<https://github.com/thoughtworks/maeve-csms>`_. Note: This has not been
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officially tested by us.
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