Error loading mixed mode assembly
Referencing a .N2.0 assembly from my .Net 4.0 client profile application today I encountered this error:
Mixed mode assembly is built against version 'v2.0.50727' of the runtime and cannot be loaded in the 4.0 runtime without additional configuration information.
What is this additional configuration information? Addto the app.config-file. Example:
For more information, see this excellent post.