services.AddSwaggerGen() giving error

Question

All I\'m trying to do is add swagger to an ASP.Net Core application. I\'m watching a tutorial and all I see them do is add services.AddSwaggerGen(); under the c

Answer 1

I had problem, that

IServiceCollection does not contain a definition for 'AddSwaggerGen'

I turnes out, that I installed Swashbuckle.AspNetCore.Swagger nuget package instead of Swashbuckle.AspNetCore.

In .NET Core 3, there's some issues as discussed here. The solution is to add the following to the project file, replacing the prior version.