Null reference exception about mvcdonutcaching HOT 5 CLOSED

I think I may have had the same issue. I did a pull request #27 .

from mvcdonutcaching.

I don't think it's the same issue, because you solved a "duplicate key exception" (as you state, btw), but I'm having a "Null reference exception".
To be honest I've investigated this because it was only happening with dumb spiders.

from mvcdonutcaching.

Sorry about that, I didn't read in detail. I actually have gotten the null reference exception too, and it was with a spider. Since it crawls, I assume the issue is probably in the first two lines:

var actionName     = context.RouteData.Values["action"].ToString();
var controllerName = context.RouteData.Values["controller"].ToString();

Spiders tend to break up a url so there may be some cases were an action isn't defined with he request (i.e http://myurlroot.com/somecontroller/someaction exists in a sitemap, a crawler may try http://myurlroot.com/somecontoller and if a default action isn't defined the value may be null in routedata). It would probably be best if the code checked for null on these route values. Short of that though, you could possibly look over your routes and my sure default actions are defined on all of them.

from mvcdonutcaching.

I think this is a duplicate of #19 (I don't know what #19 is closed since the issue remains).
The reported line seems wrong in my stack trace since there is no line 220 in https://github.com/moonpyk/mvcdonutcaching/blob/173519a3d89ef28a09cb2ae45df9a34c4438b716/DevTrends.MvcDonutCaching/KeyGenerator.cs ; and line 43 as reported on issue #19 can't thrown a null reference exception (maybe the line 36? would be fixed with a simple x.Key != null && ...?)

from mvcdonutcaching.

I just uploaded a new release candidate of the package on nuget.org

from mvcdonutcaching.