I have separated my resource file to another class library and i am using expression builder to find the resource files.
I am doing an automated build, in that i am getting some error :
[exec] /temp/UserControls/Login.ascx(30): error ASPPARSE: The resource object with key ‘Not_a_validUser’ was not found.
In your automated build process make sure your resourcer project gets built first or at least before the web project does. Basically the compiler can not find this key “Not_a_validUser” in your resources project which would imply the resources project has not been built yet with the latest changes.
Hope this helps!