Brand new app failing with: NG0203: inject() must be called from an injection context such as a constructor about angular HOT 6 CLOSED

This typically happens when there's multiple copies of @angular/core present, as tracked in #35586. I don't have sufficient insight into your situation to judge whether this is the case here as well, so please provide a runnable reproduction.

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I agree with @JoostK, I had a similar issue when I was testing and linking the framework repo with the local repo during my tests.

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Thanks for the replies. I have worked out what is causing it in my environment, but not sure if there's a resolution.

I have a persisted SUBST 'drive' in my machine (https://en.wikipedia.org/wiki/SUBST#Registry_(DOS_Devices))

This means that files at C:\Users\Me\Documents\Source are also at S:\

When I run the Angular app by ng serve from the S: drive, it fails. When I run it from the C: drive, it succeeds. So it's something to do with this symbolic link. It only affects ng serve - not ng build. It hasn't previously been a problem (in other versions of Angular), but I guess there's something new in the build/serve code?

I have a workaround, but it would be good to know of a proper solution.

I guess it might be related to this: vitejs/vite#10802

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I am not familiar with drive-mapped directories, but if they behave like symlinks then the preserveSymlinks option may affect how this works.

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Yes, thank you, setting preserveSymlinks to true in my angular.json (at projects.my-project.architect.build.options.preserveSymlinks) seems to have solved it.

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