C# – Specified argument was out of the range of valid values. Parameter name: site

ciisvisual studioweb.config

I am getting this Kind of Error like::

Specified argument was out of the range of valid values.Parameter name: site

while Debugging any of my Project.

I have also tried after Reinstalling My Visual Studio 2012. But again the same kind of problem I am getting while Debugging.

My System's Configurations are :

Windows 8 : 32-bit
Visual Studio : 2012

Exception is thrown at the time of Showing Web Page Like,

[ArgumentOutOfRangeException: Specified argument was out of the range of valid values.
Parameter name: site]
   System.Web.HttpRuntime.HostingInit(HostingEnvironmentFlags hostingFlags, PolicyLevel policyLevel, Exception appDomainCreationException) +298

[HttpException (0x80004005): Specified argument was out of the range of valid values.
Parameter name: site]
   System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +9873912
   System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +101
   System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context) +254

Best Answer

If using IIS:

control panel
Programs
open or close windows features
tick internet information services
then restart your visual studio

If using IIS Express:

Open 'Add/Remove Programs' from the old control panel and run a repair on IIS Express Or you might go Control Panel ->> Programs ->> Programs and Features ->> Turn Windows features on or off ->> Internet Information Services and check the checkbox as shown in the picture below:

enter image description here

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C# – Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding. The statement has been terminated

Looks like you have a query that is taking longer than it should. From your stack trace and your code you should be able to determine exactly what query that is.

This type of timeout can have three causes;

There's a deadlock somewhere
The database's statistics and/or query plan cache are incorrect
The query is too complex and needs to be tuned

A deadlock can be difficult to fix, but it's easy to determine whether that is the case. Connect to your database with Sql Server Management Studio. In the left pane right-click on the server node and select Activity Monitor. Take a look at the running processes. Normally most will be idle or running. When the problem occurs you can identify any blocked process by the process state. If you right-click on the process and select details it'll show you the last query executed by the process.

The second issue will cause the database to use a sub-optimal query plan. It can be resolved by clearing the statistics:

exec sp_updatestats

If that doesn't work you could also try

dbcc freeproccache

You should not do this when your server is under heavy load because it will temporarily incur a big performace hit as all stored procs and queries are recompiled when first executed. However, since you state the issue occurs sometimes, and the stack trace indicates your application is starting up, I think you're running a query that is only run on occasionally. You may be better off by forcing SQL Server not to reuse a previous query plan. See this answer for details on how to do that.

I've already touched on the third issue, but you can easily determine whether the query needs tuning by executing the query manually, for example using Sql Server Management Studio. If the query takes too long to complete, even after resetting the statistics you'll probably need to tune it. For help with that, you should post the exact query in a new question.

C# – Why is My ASP Web Application Attempting to Write to C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files

The CLR copies all your assemblies to that directory and compiles your .aspx/.asmx/etc files and puts the compiled version in Temporary ASP.NET Files.

This must be writable so that your site can be compiled at runtime.

Edit: Here is an MSDN article explaining it.

As discussed in the comments, if the provider refuses to let you write to that directory, you can override it by putting the following in your web.config, 'system.web' section:

<compilation tempDirectory="c:\path\to\directory\you\can\write" />

Best Answer

Related Solutions

C# – Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding. The statement has been terminated

C# – Why is My ASP Web Application Attempting to Write to C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files

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