Angular material elements not recognized after update

Created December 07, 2023 14:30

I have an angular project inside a .net mvc c# solution, when I open my solution with Rider I see that all the elements, which use angular material are not being recognized, I get warning messages like “Unknown html tag mat-card-header”.

However, if I just open with Rider only the angular project folder then everything seems fine.

This started to happen after I updated to v.2023.3
What am I missing?

2 comments

Tao Sun

Created December 11, 2023 08:08

Alexrobles8 Could you try to delete the .idea folder, reload the project, then removing node_modules and rerun npm install in Rider?

Could see some similar discussion in this thread:

RIDER-44892 Angular components and directives from libraries show as unknown HTML tags

Alexrobles8

Created January 11, 2024 07:41

Thank you! This fixed my problem.

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