There was no runtime pack for Microsoft.AspNetCore.App available for the specified RuntimeIdentifier 'android-x64'If you ever encountered this error in your Maui Blazor hybrid App, this is probably due to authentication.
It took me a while to find it out (more than I care to admit) mainly because I had serial issues with workload packages that I thought at first that it came from there.
For me, it came from the package Microsoft.Identity.Web that was somehow added to my application probably due to my multiple tweaks and tryouts regarding authentication with Entra ID B2C.
In any case, this package is not compatible with android so it will never work when you try to build your Maui Blazor Hybrid App for android.
Remove it from the packages of your app, chances are that you don’t even need it.
Happy fixing