InheritInChildApplications attribute not recognized in web.config location element - asp.net

I've tried wrapping my
<system.web>
with
<location path="." InheritInChildApplications="false">
like this
<location path="." InheritInChildApplications="false">
<system.web>...</system.web>
</location>
But VS 2010 Web Developer Express keeps saying
The 'InheritInChildApplications' attribute is not allowed
When I run my web app there's an error:
HTTP Error 500.19 - Internal Server Error
The requested page cannot be accessed because the related configuration data for the page is invalid.
Config Error Unrecognized attribute 'InheritInChildApplications'.
My configuration: ASP.NET 4.0 RTM, VS 2010, IIS 7.5

It could be because you don't have a namespace specified on the root node? eg
You need
<configuration xmlns="http://schemas.microsoft.com/.NetConfiguration/v2.0">
not
<configuration>

I think the issue here is that inheritInChildApplications is not a valid attribute of the location node in .net 4.0.
The reason the above fix works is because you are specifically targeting the .net 2.0 configuration schema
<configuration xmlns="http://schemas.microsoft.com/.NetConfiguration/v2.0">
.net 4.0 privdes a different way of dealing with config inheritance.
See http://msdn.microsoft.com/en-us/library/b6x6shw7.aspx and http://msdn.microsoft.com/en-us/library/ms178692.aspx for more details.

Shouldn't it be a lowercase 'i'?
<location path="." inheritInChildApplications="false">
I have been using it successfully on the last 4 or 5 projects I have worked on. My spec is similar to yours. I'm still using .NET 4 RC. I also include the system.webServer settings within location.
Good luck,
Rich

I use clear quite often to achieve this:
<configuration>
<system.web>
<assemblies>
<clear>
<clientTarget>
<clear>
<compilation>
<compilers>
<clear>
<httpHandlers>
<clear>
<httpModules>
<clear>
<serviceDescriptionFormatExtensionTypes>
<clear>
<webServices>
<protocols>
<clear>
<soapExtensionTypes>
<clear>
<soapExtensionReflectorTypes>
<clear>
<soapExtensionImporterTypes>
<clear>

Related

Web.config page - ASP.NET 3.5 error

I have the following web.config page (My site is in ASP.NET 3.5):
<?xml version="1.0"?>
<configuration>
<system.web>
<compilation debug="true" targetFramework="3.0"/>
<pages validateRequest="false"/>
<httpRuntime requestValidationMode="2.0" />
</system.web>
</configuratiotn>
The problem is that there is an error under the targetFramework and the requestValidationMode.
But I get thie errors:
Unrecognized attribute 'requestValidationMode. Note that names are case-sensitive features.
Unrecognized attribute 'targetFramework. Note that names are case-sensitive features.
My question is how can I fix this error?
requestValidationMode and targetFramework are .NET 4.0+ specific, so you can't use those in an ASP.NET 3.5 project.

custom HttpModule doesn't work in vs 2012

I programmed a custom HTTPModule through implemnting IHttpModule interface.Then i registered it in web.config file
<configuration>
<system.web>
<httpModules >
<add name="AuthHttpModule" type="AuthHttpModule" />
</httpModules>
</system.web>
</configuration>
but it's throw an error when i try to access any page
An ASP.NET setting has been detected that does not apply in Integrated
managed pipeline mode.
Note: I'm using VS2012 and C#.
If you are using Integrated mode configure you handlers & modules inside system.webServer instead of system.web.
<configuration>
<system.webServer>
<handlers>
</handlers>
<modules>
</modules>
</system.webServer>
</configuration>
Or
If you want to use you existing setting you can use "Classic Mode" for that.

The element 'system.web' has invalid child element 'defaultDocument'

I'm training my web.config to recognize what the best default file is. According to my host it's supposed to look like in the listing below.
<?xml version="1.0"?>
<!--
For more information on how to configure your ASP.NET application, please visit
http://go.microsoft.com/fwlink/?LinkId=169433
-->
<configuration>
<appSettings/>
<system.web>
<defaultDocument>
<files>
<clear />
<add value="Defalut.aspx" />
</files>
</defaultDocument>
<compilation debug="true" targetFramework="4.0"/>
<httpRuntime/>
<pages controlRenderingCompatibilityVersion="4.0"/>
<machineKey/>
<customErrors defaultRedirect="Error.aspx" mode="On"/>
</system.web>
</configuration>
The problem is that VS2012 (Express) marks it blue and claims the error in the subject. First i thought that i could upload it as it is and by brute force make the server to like the file but it then got angry and spat out the following
HTTP Error 500.19 - Internal Server Error
The requested page cannot be accessed because the related configuration data for the page is invalid.
As i read the error message it says that: "The configuration section 'defaultDocument' cannot be read because it is missing a section declaration."
I've done my homework and found the article below but due to the limitation in my situation (e.g. i need to manually upload the web.config file and i can't run any scripts on the server of my hosting company), it was to no avail.
How do i kill this little problem?
"Defalut.aspx" is a definite yellow flag.
SUGGESTION:
Just create a new dummy project with MSVS2012 (I don't have a copy handy, so I can't help you at the moment)
Cut and paste the auto-generated "web.config" into your project and verify that it works.
If it doesn't, make ONLY those MINIMAL changes needed to get a clean compile/execute.
Save a backup of your working web.config
Try adding your "defaultDocument" section and see what happens.
If it still doesn't work, please cut/paste:
a) the exact section (as I presume you did above)
b) the exact error message
ALSO:
Q: It now fails in BOTH your MSVS2012 (running locally) AND your target web server, correct?
Q: Are you sure the target web server is ASP.Net 4.0 capable?
You config looks correct but the error occurs because it cannot find the file that is mean to be the default document for all your website folders
So please replace "Defalut.aspx" with he correct spelling of the file in the below xml
<defaultDocument>
<files>
<clear />
<add value=*"Defalut.aspx"* />
</files>
</defaultDocument>
Late to the party, I know, but for anybody still with a similar problem, I don't believe this has anything to do with the spelling of the default page name (that will probably just give a 404 when it's accessed).
The real issue is that the defaultDocument section should actually be under system.webServer, not system.web. See defaultDocument Element for more info.
So your sample config file should look something like:
<?xml version="1.0"?>
<!--
For more information on how to configure your ASP.NET application, please visit
http://go.microsoft.com/fwlink/?LinkId=169433
-->
<configuration>
<appSettings/>
<system.web>
<compilation debug="true" targetFramework="4.0"/>
<httpRuntime/>
<pages controlRenderingCompatibilityVersion="4.0"/>
<machineKey/>
<customErrors defaultRedirect="Error.aspx" mode="On"/>
</system.web>
<system.webServer>
<defaultDocument>
<files>
<clear />
<add value="Defalut.aspx" />
</files>
</defaultDocument>
</system.webServer>
</configuration>

MVC Web.Debug.Config Question Concerning Debug Mode

This is probably a quick question. I'm very new to solution configurations and web.config xml file transformations. I wanted to add a transformation to set the debug attribute for the compilation element of an Asp.Net Mvc website to true:
Web.Debug.config:
<system.web>
<compilation debug="true" xdt:Transform="SetAttributes(debug)" />
</system.web>
Web.config:
<compilation targetFramework="4.0">
<assemblies>
...
</assemblies>
</compilation>
but when I press F5, a window pops up in Visual Studio saying "The page cannot be run in debug mode because debugging is not enabled in the web.config file." It then gives me the option to alter the Web.config file. But I thought the point of the Web.Debug.config file was to allow this to get set automatically... Can I get Visual Studio to use the transformed Web.config file after pressing F5?
Many thanks in advance!
Andrew
Okay, I've decided to use the following setup instead:
Web.config:
<configuration>
...
<system.web>
<compilation debug="true" targetFramework="4.0">
<assemblies>
...
</assemblies>
</compilation>
</system.web>
...
</configuration>
Web.Release.config:
<configuration xmlns:xdt="http://schemas.microsoft.com/XML-Document-Transform">
<system.web>
<compilation debug="false" xdt:Transform="SetAttributes(debug)" />
</system.web>
</configuration>
This should cause the compilation debug attribute to get overwritten with "false" when the build deployment configuration is set to "release".
From my experience, Transformations do not happen when using the F5 or visual studio debugger. It only does transformations after you publish the website.
Try this
< compilation xdt:Transform="RemoveAttributes(debug)" />
In Visual Studio 2013 if you only have a web.config file, you can right click it and choose "Add Config Transform". By default it contains the
<compilation xdt:Transform="RemoveAttributes(debug)" />
which removes the debug="true".

Avoid web.config inheritance in child web application using inheritInChildApplications

I am trying to add
<location inheritInChildApplications="false">
to my parent web application's web.config but it doesn't seem to be working.
My parent's web.config has:
<configuration>
<configSections>
</configSections>
// 10 or so custom config sections like log4net, hibernate,
<connectionStrings>
</connectionStrings>
<appSettings>
</appSettings>
<system.diagnostics>
</system.diagnostics>
<system.web>
<webParts>
</webParts>
<membership>
</membership>
<compilation>
</compilation>
</system.web>
<location ..>
<system.web>
</system.web>
</location>
<system.webServer>
</system.webServer>
My child web application is setup as an application in IIS, and is inheriting from the parent's web.config which is causing problems.
Where exactly should I place the
<location inheritInChildApplications="false">
so it ignores all the various web.config settings?
As the commenters for the previous answer mentioned, you cannot simply add the line...
<location path="." inheritInChildApplications="false">
...just below <configuration>. Instead, you need to wrap the individual web.config sections for which you want to disable inheritance. For example:
<!-- disable inheritance for the connectionStrings section -->
<location path="." inheritInChildApplications="false">
<connectionStrings>
</connectionStrings>
</location>
<!-- leave inheritance enabled for appSettings -->
<appSettings>
</appSettings>
<!-- disable inheritance for the system.web section -->
<location path="." inheritInChildApplications="false">
<system.web>
<webParts>
</webParts>
<membership>
</membership>
<compilation>
</compilation>
</system.web>
</location>
While <clear /> may work for some configuration sections, there are some that instead require a <remove name="..."> directive, and still others don't seem to support either. In these situations, it's probably appropriate to set inheritInChildApplications="false".
It needs to go directly under the root <configuration> node and you need to set a path like this:
<?xml version="1.0"?>
<configuration>
<location path="." inheritInChildApplications="false">
<!-- Stuff that shouldn't be inherited goes in here -->
</location>
</configuration>
A better way to handle configuration inheritance is to use a <clear/> in the child config wherever you don't want to inherit. So if you didn't want to inherit the parent config's connection strings you would do something like this:
<?xml version="1.0"?>
<configuration>
<connectionStrings>
<clear/>
<!-- Child config's connection strings -->
</connectionStrings>
</configuration>
I put everything into:
<location path="." inheritInChildApplications="false">
....
</location>
except: <configSections/>, <connectionStrings/> and <runtime/>.
There are some cases when we don't want to inherit some secions from <configSections />, but we can't put <section/> tag into <location/>, so we have to create a <secionGroup /> and put our unwanted sections into that group. Section groups can be later inserted into a location tag.
So we have to change this:
<configSections>
<section name="unwantedSection" />
</configSections>
Into:
<configSections>
<sectionGroup name="myNotInheritedSections">
<section name="unwantedSection" />
</sectionGroup>
</configSections>
<location path="." inheritInChildApplications="false">
<myNotInheritedSections>
<unwantedSection />
</myNotInheritedSections>
</location>
We were getting an error related to this after a recent release of code to one of our development environments. We have an application that is a child of another application. This relationship has been working fine for YEARS until yesterday.
The problem:
We were getting a yellow stack trace error due to duplicate keys being entered. This is because both the web.config for the child and parent applications had this key. But this existed for many years like this without change. Why all of sudden its an issue now?
The solution:
The reason this was never a problem is because the keys AND values were always the same. Yesterday we updated our SQL connection strings to include the Application Name in the connection string. This made the string unique and all of sudden started to fail.
Without doing any research on the exact reason for this, I have to assume that when the child application inherits the parents web.config values, it ignores identical key/value pairs.
We were able to solve it by wrapping the connection string like this
<location path="." inheritInChildApplications="false">
<connectionStrings>
<!-- Updated connection strings go here -->
</connectionStrings>
</location>
Edit: I forgot to mention that I added this in the PARENTS web.config. I didn't have to modify the child's web.config.
Thanks for everyones help on this, saved our butts.
If (as I understand) you're trying to completely block inheritance in the web config of your child application, I suggest you to avoid using the tag in web.config.
Instead create a new apppool and edit the applicationHost.config file (located in %WINDIR%\System32\inetsrv\Config and %WINDIR%\SysWOW64\inetsrv\config).
You just have to find the entry for your apppool and add the attribute enableConfigurationOverride="false" like in the following example:
<add name="MyAppPool" autoStart="true" managedRuntimeVersion="v4.0" managedPipelineMode="Integrated" enableConfigurationOverride="false">
<processModel identityType="NetworkService" />
</add>
This will avoid configuration inheritance in the applications served by MyAppPool.
Matteo
This is microsoft's page on the location tag: http://msdn.microsoft.com/en-us/library/b6x6shw7%28v=vs.100%29.aspx
It may be helpful to some folks.
We're getting errors about duplicate configuration directives on the one of our apps.
After investigation it looks like it's because of this issue.
In brief, our root website is ASP.NET 3.5 (which is 2.0 with specific libraries added), and we have a subapplication that is ASP.NET 4.0.
web.config inheritance causes the ASP.NET 4.0 sub-application to inherit the web.config file of the parent ASP.NET 3.5 application.
However, the ASP.NET 4.0 application's global (or "root") web.config, which resides at C:\Windows\Microsoft.NET\Framework\v4.0.30319\Config\web.config and C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Config\web.config (depending on your bitness), already contains these config sections.
The ASP.NET 4.0 app then tries to merge together the root ASP.NET 4.0 web.config, and the parent web.config (the one for an ASP.NET 3.5 app), and runs into duplicates in the node.
The only solution I've been able to find is to remove the config sections from the parent web.config, and then either
Determine that you didn't need them in your root application, or if you do
Upgrade the parent app to ASP.NET 4.0 (so it gains access to the root web.config's configSections)

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