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...	...	@@ -4,6 +4,16 @@
4	4	(% class="wikigeneratedid" %)
5	5	For more information on the Collaboratory, please seee the [[documentation of the EBRAINS Collaboratory environment>>https://wiki.ebrains.eu/bin/view/Collabs/the-collaboratory/]].
6	6
	7	+== Temporary problems ==
	8	+
	9	+=== August 2022: "504 Gateway Time-out" ===
	10	+
	11	+The call to //client.list_resource_requests(repoInfo.nameInTheUrl)// in the batch-exmaple notebooks currently (19 August 2022) result in a "504 Gateway Time-out" error due to a problem in the back-end. As a workaround, please just skip the part by inserting a line with the content
	12	+//exit(0)//
	13	+before the line
	14	+//a=client.list_resource_requests(repoInfo.nameInTheUrl)//
	15	+in the example notebook. This skips the pre-check for an existing quota (so, if a quota entry is missing the execution will fail later), but allows the notebook to run, if a quota entry is present (which is the usual case).
	16	+
7	7	== Jupyter notebook environment ("Lab") related ==
8	8
9	9	=== Error message "Error in Authenticator.pre_spawn_start: ... 401: Unauthorized" ===
...	...	@@ -33,20 +33,11 @@
33	33	[[image:1623846323177-898.png||height="287" width="350"]]
34	34
35	35
36		-=== Test jobs make problems at Jülich ===
	46	+=== Import error for hbp_service_client ===
37	37
38		-Since August 2021 accessing the "Lab" link in the left hand navigation menu brings up a site selection menu:
	48	+The hbp_service_client was needed for the now not-existing-any-longer Collaboratory version 1. The import line can be deleted from scripts.
39	39
40		-[[image:Screenshot 2021-08-30 at 19.00.59.png||height="252" width="300"]]
41	41
42		-Via choosing a different lab execution site it is be possible to choose a specific site, if there are specific needs for the created Jupyter virtual machine for a given task (e.g. a large memory requirement). Currently all the examples do not need any site specific features, so you can select in principle any site. The "safe choice" is to use CSCS as the primary execution site.
43		-
44		-
45		-=== ===
46		-
47		-
48		-
49		-
50	50	== BrainScaleS-2 specific ==
51	51
52	52	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.