Sometimes "HTTP 404" appears when the program is running. The resource you are looking for (or one of its dependencies) may have been removed, or its name has changed, or is temporarily unavailable. Please check the following URL and make sure it is spelled correctly. "Error message.
Here we take the runtime to open the login page (login) as an example,
In general, there are two situations:
1. Error reason: The route is incorrect.
WORKAROUND: Open the project's "Global.asax" file, locate the route registration (RegisterRoutes ()) method, and change the controller in the route to "Login" on the line. The action method is typically selected as the default method () for "Index", but can be modified to suit your needs and is not shown here.
2. Cause of Error: Select an item in the view as the starting item.
Workaround:
(1), right-click the project Properties--Find web options. You will find that the value of the specific page option is the name of the view you set as the Start page.
(2), set the value of a specific page to "login" or "Login/index" (Index is the default, can be written without writing).
(3), run the project.
MVC 3.0 Error HTTP 404 The resource You are looking for (or one of its dependencies) may have been removed, or its name has changed, or is temporarily unavailable. Please check the following URL and make sure it is spelled correctly.