Changes for page Troubleshooting
Last modified by kindler on 2025/05/14 16:54
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... ... @@ -37,11 +37,22 @@ 37 37 [[image:1623846323177-898.png||height="287" width="350"]] 38 38 39 39 40 +=== Error message: "Could not identify EBRAINS kernel " === 41 + 42 +If your notebook shows "RuntimeError: Could not identify EBRAINS kernel (probably too old version). Please select the appropriate kernel EBRAINS_experimental_release.": Please check, whether an EBRAINS kernel has been selected as kernel for the notebook execution. In the example screenshot below the "Python 3 (ipykernel)" has been used, as shown in the upper right hand corner of the tab with the notebook. 43 + 44 +[[image:1666184857320-440.png]] 45 + 46 + 47 +Fix: click the current kernel name to get the kernel selection dialog box and select the "EBRAINS_experimental_release" kernel (blue highlight in the screenshot shown below): 48 + 49 +[[image:image-20221019150927-1.png]] 50 + 51 +(% class="wikigeneratedid" %) 40 40 === Import error for hbp_service_client === 41 41 42 42 The hbp_service_client was needed for the now not-existing-any-longer Collaboratory version 1. The import line can be deleted from scripts. 43 43 44 - 45 45 == BrainScaleS-2 specific == 46 46 47 47 The [[BrainScaleS external user chat>>https://chat.bioai.eu/external-users/channels/town-square]] has service announcements (e.g. when a system is down due to maintenance) and is also a good place to ask general questions.
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- Temporary problems
- Jupyter notebook environment ("Lab") related
- Error message "RuntimeError: EBRAINS kernel mismatch. Expected: EBRAINS-24.04 Actual: EBRAINS-25.02. Please select the appropriate kernel."
- Error message "Error in Authenticator.pre_spawn_start: ... 401: Unauthorized"
- No example notebooks in the Jupyter notebook environment ("Lab")
- Timeout when starting the Jupyter notebook environment ("Lab")
- Lab error message "Cannot open - Could not find path..."
- Error message: "Could not identify EBRAINS kernel "
- Import error for hbp_service_client
- BrainScaleS-2 specific
- BrainScaleS-1 specific
- Spikey