how to fix form catalog MFE api.ts:36 POST http://local.openedx.io:8000/search/unstable/v0/course_list_search/ 404 (Not Found)

@Mostafa_Khairy I think you have configuration issues. If you’re running Tutor 20, you should be on release/teak branches. And the Catalog MFE will not work until Ulmo is released, because the APIs have changed. When Tutor 21 is released, you will need to upgrade to Tutor 21 and Ulmo branches before…

Hi @Mostafa_Khairy - could you explain more? What version of Tutor are you running? Are you sure you’re running the Catalog MFE - it is being released optionally with Ulmo, which has been delayed.

i use tutor, version 20.0.4 and edx-platform open-release/sumac.3 and frontend-app-catalog release/ulmo

There is a common problem between Tutor 20 and the Ulmo website that you are seeing. Following changes to APIs after teak/sumac.3, Catalog MFE will not work with your 404 error because those routes do not exist yet. You can either stay on the teak branches until Ulmo-compatible APIs are ready, or yo…

I just opened this issue with this MFE: Error when loading new catalog microfrontend opened 06:45PM - 26 Jan 26 UTC (UTC) [image] mboisson Hi, I am ru…

Catalog MFE fix 404 error

Development

mboisson (Maxime Boissonneault) January 26, 2026, 7:06pm 8

also see Backend not ready for catalog mfe in latest version (ulmo.1)

Topic		Replies	Views
Backend not ready for catalog mfe in latest version (ulmo.1) Tutor Help api , mfe , backend-dev , edx-platform , ulmo	10	133	February 10, 2026
Course catalog is empty Site Operators	9	93	February 26, 2026
No MFE for /courses sub pages ? Still using legacy? Frontend ulmo	14	61	January 28, 2026
The ecommerce deployed by Tutor cannot jump to the checkout page correctly Site Operations Help tutor	9	682	July 30, 2023
Payment MFE returns 404 Site Operations Help ecommerce , tutor	14	766	June 12, 2023

Catalog MFE fix 404 error

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