asp.net mvc 3 - Changing setting in applicationHost.config to Allow has no effect on 500.19 error -

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i have web site using .net 4 , asp.net mvc3 running in iis 7.5. following error:

this configuration section cannot used @ path. happens when section locked @ parent level. locking either default (overridemodedefault="deny"), or set explicitly location tag overridemode="deny" or legacy allowoverride="false".

i found solution here, setting overridemodedefault allow both handlers , modules seems have no effect on site still 500.19 error. tried restarting iis , searching other possible config files not find any. i'm out of ideas , every site i've looked @ suggesting above solution says change it, save , you're done, i'm @ loss on problem. other thing haven't done restarted server, nothing has suggested should necessary.

i recommend using appcmd.exe allow overriding different configuration sections. more info on can found @ (http://learn.iis.net/page.aspx/114/getting-started-with-appcmdexe/).

to answer question directly, can globally unlock config section using following command.

%windir%\system32\inetsrv\appcmd.exe unlock config -section:path/to/section

if want unlock config section site, can pass in site name.


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