Problem starting project after update

when i try to debug i get an error.
I have checked the Nuget packaged is installed and it’s in the correct folder and referenced correcly.

Any idea?

{“Could not load file or assembly ‘ServiceStack.Interfaces, Version=, Culture=neutral, PublicKeyToken=e06fbc6124f57c43’ or one of its dependencies. The located assembly’s manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)”:“ServiceStack.Interfaces, Version=, Culture=neutral, PublicKeyToken=e06fbc6124f57c43”}

Something is referencing the old v4.0.0 of ServiceStack.Interfaces.

Check to make sure all your dependencies are referencing the same version of ServiceStack libraries. If you can’t find it, delete your NuGet /packages folder and after re-installing all the NuGet packages make sure that all packages are referencing the same version, if there’s multiple versions of the same ServiceStack package it means you still have something referencing the old versions.

Thx Mythz,
it solved the problem.

Regards Kristian