When bootstrapping FluentSecurity we scan for eventlisteners in the loaded assemblies. In some cases you might get a TypeLoadException when running beta1. Do not worry, there will be a second beta available soon that adresses this issue.
The TypeLoadException is not caused by FluentSecurity so you can continue to use beta1 if you are willing to deal with the underlying issue (and you probably should).
In beta 1 of FluentSecurity v.2.0 we have introduced an event pipeline that is used for diagnostic purposes. https://github.com/kristofferahl/FluentSecurity/wiki/Diagnostics-2.0#diagnostics-pipeline-securitydoctor
When bootstrapping FluentSecurity we scan for eventlisteners in the loaded assemblies. In some cases you might get a TypeLoadException when running beta1. Do not worry, there will be a second beta available soon that adresses this issue.
The TypeLoadException is not caused by FluentSecurity so you can continue to use beta1 if you are willing to deal with the underlying issue (and you probably should).