Khan acadamy error check the log for more information

Hi

I have osmc installed on RPi3. In installed the iPlayer add on and it seems to work fine.

However when I install the Kahan Acadamy add on and try to play it, I simply get a message saying:

Khan Acadamy Error
check the log file for more information

Does anyone know why I get this or how I can go about finding out why ?
To what log file is it referring ?

I did find a logging section under settings from where I selected Enable debug logging. I then followed the log file from a login prompt and selected Khan Acadamy plug in. Here is the (I think relevant) output I got doing that:

2022-06-18 16:23:28.430 T:2942296288 DEBUG: Previous line repeats 19 times.
2022-06-18 16:23:28.432 T:2942296288 DEBUG: CAESinkPi:Deinitialize
2022-06-18 16:23:28.435 T:2942296288 DEBUG: CAESinkPi:SetAudioProps hdmi_stream_channels 0 hdmi_channel_map 00000000
2022-06-18 16:23:28.454 T:2942296288 DEBUG: COMXCoreComponent::Deinitialize : OMX.broadcom.audio_render handle 0xb10031a8
2022-06-18 16:23:28.778 T:2785013984 DEBUG: script.module.osmcsetting.updates : - Update CONDITION : platform no longer maintained
2022-06-18 16:23:41.270 T:2961170656 DEBUG: Previous line repeats 24 times.
2022-06-18 16:23:41.272 T:2961170656 DEBUG: CLibInputKeyboard::ProcessKey - using delay: 500ms repeat: 50ms
2022-06-18 16:23:41.275 T:2629382368 DEBUG: Thread Timer start, auto delete: false
2022-06-18 16:23:41.284 T:2979196944 DEBUG: Keyboard: scancode: 0x1c, sym: 0x000d, unicode: 0x000d, modifier: 0x0
2022-06-18 16:23:41.324 T:2785013984 DEBUG: script.module.osmcsetting.updates : - Update CONDITION : platform no longer maintained
2022-06-18 16:23:41.367 T:2629382368 DEBUG: Thread Timer 2629382368 terminating
2022-06-18 16:23:41.390 T:2979196944 DEBUG: Keyboard: scancode: 0x1c, sym: 0x000d, unicode: 0x000d, modifier: 0x0
2022-06-18 16:23:41.393 T:2979196944 DEBUG: HandleKey: return (0xf00d) pressed, action is Select
2022-06-18 16:23:41.401 T:2979196944 DEBUG: CGUIMediaWindow::GetDirectory (plugin://plugin.video.khanacademy/)
2022-06-18 16:23:41.403 T:2979196944 DEBUG: ParentPath = [addons://sources/video]
2022-06-18 16:23:41.409 T:2629382368 DEBUG: Thread JobWorker start, auto delete: true
2022-06-18 16:23:41.417 T:2608140512 DEBUG: Thread waiting start, auto delete: false
2022-06-18 16:23:41.436 T:2629382368 DEBUG: CAddonDatabase::SetLastUsed[plugin.video.khanacademy] took 23 ms
2022-06-18 16:23:41.440 T:2608140512 DEBUG: StartScript - calling plugin Khan Academy(‘plugin://plugin.video.khanacademy/’,‘26’,’’,‘resume:false’)
2022-06-18 16:23:41.444 T:2566906080 DEBUG: Thread LanguageInvoker start, auto delete: false
2022-06-18 16:23:41.446 T:2533335264 DEBUG: Thread JobWorker start, auto delete: true
2022-06-18 16:23:41.449 T:2566906080 INFO: initializing python engine.
2022-06-18 16:23:41.451 T:2566906080 DEBUG: CPythonInvoker(29, /home/osmc/.kodi/addons/plugin.video.khanacademy/addon.py): start processing
2022-06-18 16:23:41.509 T:2979196944 DEBUG: ------ Window Init (DialogBusy.xml) ------
2022-06-18 16:23:41.873 T:2785013984 DEBUG: script.module.osmcsetting.updates : - Update CONDITION : platform no longer maintained
2022-06-18 16:23:43.309 T:2566906080 DEBUG: Previous line repeats 2 times.
2022-06-18 16:23:43.317 T:2566906080 DEBUG: -->Python Interpreter Initialized<–
2022-06-18 16:23:43.322 T:2566906080 DEBUG: CPythonInvoker(29, /home/osmc/.kodi/addons/plugin.video.khanacademy/addon.py): the source file to load is “/home/osmc/.kodi/addons/plugin.video.khanacademy/addon.py”
2022-06-18 16:23:43.340 T:2566906080 DEBUG: CPythonInvoker(29, /home/osmc/.kodi/addons/plugin.video.khanacademy/addon.py): setting the Python path to /home/osmc/.kodi/addons/plugin.video.khanacademy:/home/osmc/.kodi/addons/plugin.video.youtube/resources/lib/:/home/osmc/.kodi/addons/script.module.certifi/lib:/home/osmc/.kodi/addons/script.module.chardet/lib:/home/osmc/.kodi/addons/script.module.idna/lib:/home/osmc/.kodi/addons/script.module.inputstreamhelper/lib:/home/osmc/.kodi/addons/script.module.requests/lib:/home/osmc/.kodi/addons/script.module.six/lib:/home/osmc/.kodi/addons/script.module.urllib3/lib:/home/osmc/.kodi/addons/script.module.xbmcswift2/lib:/usr/lib/python2.7:/usr/lib/python2.7/plat-arm-linux-gnueabihf:/usr/lib/python2.7/lib-tk:/usr/lib/python2.7/lib-old:/usr/lib/python2.7/lib-dynload:/usr/local/lib/python2.7/dist-packages:/usr/lib/python2.7/dist-packages:/usr/lib/python2.7/dist-packages/gtk-2.0
2022-06-18 16:23:43.343 T:2566906080 DEBUG: CPythonInvoker(29, /home/osmc/.kodi/addons/plugin.video.khanacademy/addon.py): entering source directory /home/osmc/.kodi/addons/plugin.video.khanacademy
2022-06-18 16:23:43.345 T:2566906080 DEBUG: CPythonInvoker(29, /home/osmc/.kodi/addons/plugin.video.khanacademy/addon.py): instantiating addon using automatically obtained id of “plugin.video.khanacademy” dependent on version 2.1.0 of the xbmc.python api
2022-06-18 16:23:43.688 T:2785013984 DEBUG: script.module.osmcsetting.updates : - Update CONDITION : platform no longer maintained
2022-06-18 16:23:55.313 T:2566906080 DEBUG: Previous line repeats 19 times.
2022-06-18 16:23:55.317 T:2566906080 DEBUG: [xbmcswift2] Loaded storage “.functions” from disk
2022-06-18 16:23:55.358 T:2566906080 DEBUG: [xbmcswift2] Adding url rule “//” named “show_topic” pointing to function “main_menu”
2022-06-18 16:23:55.368 T:2566906080 DEBUG: [xbmcswift2] Adding url rule “/” named “main_menu” pointing to function “main_menu”
2022-06-18 16:23:55.374 T:2566906080 DEBUG: [xbmcswift2] Handling incoming request for /
2022-06-18 16:23:55.379 T:2566906080 NOTICE: [xbmcswift2] Request for “/” matches rule for function “main_menu”
2022-06-18 16:23:55.384 T:2566906080 DEBUG: [xbmcswift2] Storage miss for function “get_khan_data” with args “()” and kwargs “{}”
2022-06-18 16:23:55.719 T:2785013984 DEBUG: script.module.osmcsetting.updates : - Update CONDITION : platform no longer maintained
2022-06-18 16:23:55.874 T:2566906080 ERROR: EXCEPTION Thrown (PythonToCppException) : -->Python callback/script returned the following error<–
- NOTE: IGNORING THIS CAN LEAD TO MEMORY LEAKS!
Error Type: <class ‘requests.exceptions.JSONDecodeError’>
Error Contents: No JSON object could be decoded
Traceback (most recent call last):
File “/home/osmc/.kodi/addons/plugin.video.khanacademy/addon.py”, line 61, in
plugin.run()
File “/home/osmc/.kodi/addons/script.module.xbmcswift2/lib/xbmcswift2/plugin.py”, line 342, in run
items = self._dispatch(self.request.path)
File “/home/osmc/.kodi/addons/script.module.xbmcswift2/lib/xbmcswift2/plugin.py”, line 316, in _dispatch
listitems = view_func(**items)
File “/home/osmc/.kodi/addons/plugin.video.khanacademy/addon.py”, line 57, in main_menu
return [to_listitem(item) for item in get_khan_data()[topic]]
File “/home/osmc/.kodi/addons/script.module.xbmcswift2/lib/xbmcswift2/xbmcmixin.py”, line 80, in wrapper
result = function(*args, **kwargs)
File “/home/osmc/.kodi/addons/plugin.video.khanacademy/addon.py”, line 24, in get_khan_data
return khan.load_topic_tree()
File “/home/osmc/.kodi/addons/plugin.video.khanacademy/resources/lib/khan.py”, line 86, in load_topic_tree
_json = requests.get(API_URL).json()
File “/home/osmc/.kodi/addons/script.module.requests/lib/requests/models.py”, line 915, in json
raise RequestsJSONDecodeError(e.message)
JSONDecodeError: No JSON object could be decoded
–>End of Python script error report<–
2022-06-18 16:23:55.877 T:2566906080 DEBUG: onExecutionDone(29, /home/osmc/.kodi/addons/plugin.video.khanacademy/addon.py)
2022-06-18 16:23:55.900 T:2979196944 DEBUG: ------ Window Init (DialogNotification.xml) ------
2022-06-18 16:23:55.903 T:2942296288 INFO: CActiveAESink::OpenSink - initialize sink
2022-06-18 16:23:55.905 T:2942296288 DEBUG: CActiveAESink::OpenSink - trying to open device PI:HDMI
2022-06-18 16:23:55.908 T:2942296288 DEBUG: CAESinkPi:Initialize Format:15 Channels:2 Samplerate:44100 framesize:8 bufsize:17640 bytes/s=352800.00 dest=PI:HDMI
2022-06-18 16:23:55.917 T:2942296288 DEBUG: CAESinkPi:SetAudioProps hdmi_stream_channels 0 hdmi_channel_map 00000008
2022-06-18 16:23:55.928 T:2942296288 DEBUG: COMXCoreComponent::Initialize OMX.broadcom.audio_render input port 100 output port 100 m_handle 0x9a284d38
2022-06-18 16:23:55.940 T:2942296288 DEBUG: COMXCoreComponent::AllocInputBuffers component(OMX.broadcom.audio_render) - port(100), nBufferCountMin(1), nBufferCountActual(2), nBufferSize(17648), nBufferAlignment(16)
2022-06-18 16:23:55.945 T:2942296288 DEBUG: CActiveAESink::OpenSink - SinkPi Initialized:
2022-06-18 16:23:55.947 T:2942296288 DEBUG: Output Device : HDMI
2022-06-18 16:23:55.971 T:2942296288 DEBUG: Sample Rate : 44100
2022-06-18 16:23:55.980 T:2942296288 DEBUG: Sample Format : AE_FMT_FLOAT
2022-06-18 16:23:55.984 T:2942296288 DEBUG: Channel Count : 2
2022-06-18 16:23:55.986 T:2942296288 DEBUG: Channel Layout: FL, FR
2022-06-18 16:23:55.988 T:2942296288 DEBUG: Frames : 2205
2022-06-18 16:23:55.990 T:2942296288 DEBUG: Frame Size : 8
2022-06-18 16:23:56.621 T:2785013984 DEBUG: script.module.osmcsetting.updates : - Update CONDITION : platform no longer maintained
2022-06-18 16:23:56.630 T:2566906080 INFO: Python interpreter stopped
2022-06-18 16:23:56.632 T:2566906080 DEBUG: Thread LanguageInvoker 2566906080 terminating
2022-06-18 16:23:56.634 T:2608140512 ERROR: GetDirectory - Error getting plugin://plugin.video.khanacademy/
2022-06-18 16:23:56.636 T:2608140512 DEBUG: Thread waiting 2608140512 terminating
2022-06-18 16:23:56.670 T:2979196944 DEBUG: ------ Window Deinit (DialogBusy.xml) ------
2022-06-18 16:23:56.678 T:2979196944 ERROR: CGUIMediaWindow::GetDirectory(plugin://plugin.video.khanacademy/) failed
2022-06-18 16:23:56.680 T:2979196944 DEBUG: CGUIMediaWindow::GetDirectory (addons://sources/video)
2022-06-18 16:23:56.682 T:2979196944 DEBUG: ParentPath =
2022-06-18 16:23:56.689 T:2566906080 DEBUG: Thread waiting start, auto delete: false
2022-06-18 16:23:56.790 T:2979196944 DEBUG: ------ Window Init (DialogBusy.xml) ------
2022-06-18 16:23:56.837 T:2979196944 DEBUG: ------ Window Deinit (DialogBusy.xml) ------
2022-06-18 16:23:56.844 T:2566906080 DEBUG: Thread waiting 2566906080 terminating
2022-06-18 16:23:56.866 T:2566906080 DEBUG: Thread BackgroundLoader start, auto delete: false
2022-06-18 16:23:56.916 T:2979196944 DEBUG: [Warning] CGUITextureManager::GetTexturePath: could not find texture ‘noop’
2022-06-18 16:23:57.068 T:2566906080 DEBUG: Thread BackgroundLoader 2566906080 terminating
2022-06-18 16:23:57.124 T:2785013984 DEBUG: script.module.osmcsetting.updates : - Update CONDITION : platform no longer maintained
2022-06-18 16:24:01.071 T:2979196944 DEBUG: Previous line repeats 7 times.
2022-06-18 16:24:01.073 T:2979196944 DEBUG: ------ Window Deinit (DialogNotification.xml) ------
2022-06-18 16:24:01.139 T:2785013984 DEBUG: script.module.osmcsetting.updates : - Update CONDITION : platform no longer maintained

Looks like some pythonry is puking because a JSON object could not be decoded. Does this give anyone an idea of what is happening ?

Edit:
Sorry forgot to include the osmc version I am using:

$ grep VERSION_ID /etc/os-release
VERSION_ID=“2020.11-1”

This is a very old version of OSMC. I’d suggest upgrading.

Sorry I forgot my RPi 3 has stopped working (hardware issue I think), so I have had to revert to my RPi1.2

As far as I can tell this is the latest release for an RPi1

Ooops ?

Forgetting I had had to swap to a Rpi 3 I installed the latest version of osmc for RPi 3 on it. Tried booting it and it did not work.

Having realised my error I re-installed the old image, but now I just get a blank screen when when I try to boot. By attempting to install RPi 3 osmc image on an RPi 1.2 am I likely to have damaged the hardware ? Any ideas how I might ba able to work out what has happened ?

No, it just won’t boot.

You should probably start out with standard diagnostics for a RPi; What are the lights on the RPi doing when you plug it in? Did you try another power supply and SD card?

Thank you for the reply.

It looks like the re-install got corrupted somehow - I cleaned up and installed again and it is again working ok. Back to square one.