Intermittent asp.net mvc exception: “A public action method ABC could not be found on controller XYZ.”

Question

I\'m getting an intermittent exception saying that asp.net mvc can’t find the action method. Here’s the exception:

A public action method \'Fill\' cou

Answer 1

We had a similar issue, but found that it was happening because a user was posting to a controller after his login had timed out. The system then redirected to the login screen. After logging in it redirected back to the URL the user was trying to post to, but this time it was doing a GET request instead and therefore not finding the action which was marked with an [HttpPost] attribute.