How to fix Error: “Could not find schema informati

Question

I have a windows forms application written in VS2010 with C# and get the following errors in the app.config file:

Message 4   Could not find schema information for the attribute 'name'
Message 8   Could not find schema information for the attribute 'name'
Message 12  Could not find schema information for the attribute 'name'
Message 5   Could not find schema information for the attribute 'serializeAs'
Message 15  Could not find schema information for the element 'CCP_Utility.Settings1'
Message 2   Could not find schema information for the element 'CCP_Utility.Properties.Settings'
Message 3   Could not find schema information for the element 'setting'
Message 1   Could not find schema information for the element 'userSettings'
Message 6   Could not find schema information for the element 'value'

What do I have to change in the code to fix this issue? Where can I edit what's in CCP_Utility.Settings1 and CCP_Utility.Properties.Settings ?

Here's the app.config code:

<configuration>
<configSections>
    <sectionGroup name="userSettings" type="System.Configuration.UserSettingsGroup, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" >
        <section name="CCP_Utility.Properties.Settings" type="System.Configuration.ClientSettingsSection, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" allowExeDefinition="MachineToLocalUser" requirePermission="false" />
        <section name="CCP_Utility.Settings1" type="System.Configuration.ClientSettingsSection, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" allowExeDefinition="MachineToLocalUser" requirePermission="false" />
    </sectionGroup>
  </configSections>
<userSettings>
  <CCP_Utility.Properties.Settings>
    <setting name="SourceDir" serializeAs="String">
      <value />
    </setting>
    <setting name="TargetDir" serializeAs="String">
      <value />
    </setting>
    <setting name="CorpID" serializeAs="String">
      <value />
    </setting>
  </CCP_Utility.Properties.Settings>
    <CCP_Utility.Settings1>
        <setting name="sourceDir" serializeAs="String">
            <value />
        </setting>
        <setting name="targetDir" serializeAs="String">
            <value />
        </setting>
    </CCP_Utility.Settings1>

   </userSettings>
</configuration>

Answer 1

This error occurs when your project references out of date schemas. Use Visual Studio to generate new ones.

In Visual Studio, do the following:

1. Open your app.config or web.config file.
2. Go to the XML menu and select Create Schema.

This will trigger app#.xsd (Windows app) or web#.xsd (Website) file(s) to generate.

3. Save the newly generated xsd file(s) to the root of the project.
   • Open up your App.config or web.config file, right-click in the text-editor and select properties and click the ... button next to the value for Schemas.
   • Add the newly generated xsd file(s) using the Add button.
   • Click OK

The Could not find schema information for the attribute/element error(s) should now be resolved.

Answer 2

Most of what I write has already been covered by Pressacco, but this is specific to SpecFlow.

I was getting this message for the <specFlow> element and therefore I added a specflow.xsd file to the solution this answer (with some modifications to allow for the <plugins> element).

Thereafter I (like Pressacco), right clicked within the file buffer of app.config and selected properties, and within Schemas, I added "specflow.xsd" to the end. The entirety of Schemas now reads:

"C:\Program Files (x86)\Microsoft Visual Studio 12.0\xml\Schemas\1033\DotNetConfig.xsd" "C:\Program Files (x86)\Microsoft Visual Studio 12.0\xml\Schemas\EntityFrameworkConfig_6_1_0.xsd" "C:\Program Files (x86)\Microsoft Visual Studio 12.0\xml\Schemas\RazorCustomSchema.xsd" "specflow.xsd"

Answer 3

An XSD is included with EntLib 5, and is installed in the Visual Studio schema directory. In my case, it could be found at:

C:\Program Files (x86)\Microsoft Visual Studio 10.0\Xml\Schemas\EnterpriseLibrary.Configuration.xsd

CONTEXT

• Visual Studio 2010
• Enterprise Library 5

STEPS TO REMOVE THE WARNINGS

1. open app.config in your Visual Studio project
2. right click in the XML Document editor, select "Properties"
3. add the fully qualified path to the "EnterpriseLibrary.Configuration.xsd"

ASIDE

It is worth repeating that these "Error List" "Messages" ("Could not find schema information for the element") are only visible when you open the app.config file. If you "Close All Documents" and compile... no messages will be reported.

Answer 4

When this happened to me (out of nowhere) I was about to dive into the top answer above, and then I figured I'd close the project, close Visual Studio, and then re-open everything. Problem solved. VS bug?

Answer 5

I had this in VS 2012 where the "Section name" had been changed in a project, and I fixed it by deleting "app.config" in the project, then right-clicking on the project in the "Solution Explorer", selecting "Properties", then "Settings", then making a change to one of the settings, saving, and re-building. This created a new app.config with the correct information.

Answer 6

Quickest, easiest laziest way to solve the problem:

1. Right-click on the project icon in Solution Explorer and choose "Properties".
2. Go to the "Application" tab and choose an earlier .NET target framework.
3. Save changes.
4. Go to the "Application" tab and choose the initial .NET target framework.
5. Save changes => problem solved!