Entity Framework Core - Knowledge Base (KB)

AmbiguousMatchException when selecting from DbContext

I've seen a lot of questions about how to debug an AmbiguousMatchException encountered when updating or adding a record to a context, or when there are multiple overloads to a method, but I've found nothing so far about issues found when ...selecting... f...

Ambiguous call when using LINQ extension method on DbSet<T>

I am using a LINQ query on a ...DbSet<T>...:...await _dbContext.Users.AnyAsync(u => u.Name == name); ...However, the compiler outputs the following error:...Error CS0121: The call is ambiguous between the following methods or properties: 'System.Linq.Asyn...