Trying to add AutoMapper to .NetCore1.1 - not recognising services.AddAutoMapper()

Question

I've installed the following Nuget packages into my project:

• Automapper
• AutoMapper.Extensions.Microsoft.DependencyInjection

I have added the line to ConfigureServices in Startup.cs.

public void ConfigureServices(IServiceCollection services) {     // Add framework services.     services.AddMvc();     // . . .     services.AddAutoMapper(); } 

I'm still getting a red line under services.AddAutoMapper(). It says:

The Call is ambiguous between the following methods or properties: ServiceCollectionExtensions.AddAutoMapper(IServiceCollection, params Assembly[]) and ServiceCollectionExtensions.AddAutoMapper(IServiceCollection, params Type[])

Why is this happening? All the .NET Core add automapper guides I've read show to do it this way.

Answer 1

I'm running into the same issue, so checked the sourcecode and tests for guidance. It seems you need to pass either an assembly or a "marker type" inside the assembly you want scanned. I went for the following as my Profile classes are in the same assembly as the Startup class.

services.AddAutoMapper(typeof(Startup)); 

Answer 2

I just ran into this problem and came to know that You need to include following Nuget package AutoMapper.Extensions.Microsoft.Dependencyinjection