How to fix Error: "Could not find schema information for the attribute/element" by creating schema
C#Error HandlingDatabase SchemaApplication SettingsC# Problem Overview
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>
C# Solutions
Solution 1 - C#
Quickest, easiest laziest way to solve the problem:
- Right-click on the project icon in Solution Explorer and choose "Properties".
- Go to the "Application" tab and choose an earlier .NET target framework.
- Save changes.
- Go to the "Application" tab and choose the initial .NET target framework.
- Save changes => problem solved!
Solution 2 - C#
UPDATE Sept 2015
This answer continues to get upvotes, so I'm going to leave it here since it seems to be helpful to some people, but please check out the other answers from @reexmonkey and @Pressacco first. They may provide better results.
ORIGINAL ANSWER
Give this a shot:
- In Visual Studio, open your app.config or web.config file.
- Go to the "XML" menu and select "Create Schema". This action should create a new file called "app.xsd" or "web.xsd".
- Save that file to your disk.
- Go back to your app.config or web.config and in the edit window, right click and select properties. From there, make sure the xsd you just generated is referenced in the Schemas property. If it's not there then add it.
That should cause those messages to disappear.
I saved my web.xsd in the root of my web folder (which might not be the best place for it, but just for demonstration purposes) and my Schemas property looks like this:
> "C:\Program Files (x86)\Microsoft > Visual Studio > 10.0\xml\Schemas\DotNetConfig.xsd" "Web.xsd"
Solution 3 - C#
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### 0. open app.config in your Visual Studio project
- right click in the XML Document editor, select "Properties"
- 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.
Solution 4 - C#
I found that there was a syntax error in the related module and it wasn't compiling - the compiler didn't tell me that though. Just gave me the error regarding the app.config stuff. VS2010. Once I had fixed the syntax error, all was good.
Solution 5 - C#
Simple: In Visual Studio Report designer
- Open the report in design mode and delete the dataset from the RDLC File
- Open solution Explorer and delete the actual (corrupted) XSD file
- Add the dataset back to the RDLC file.
- The above procedure will create the new XSD file.
- More detailed is below.
In Visual Studio, Open your RDLC file Report in Design mode. Click on the report and then Select View and then Report Data from the top line menu. Select Datasets and then Right Click and delete the dataset from the report. Next Open Solution Explorer, if it is not already open in your Visual Studio. Locate the XSD file (It should be the same name as the dataset you just deleted from the report). Now go back and right click again on the report data Datasets, and select Add Dataset . This will create a new XSD file and write the dataset properties to the report. Now your error message will be gone and any missing data will now appear in your reports.
Solution 6 - C#
This error occurs when your project references out of date schemas. Use Visual Studio to generate new ones.
In Visual Studio, do the following:
- Open your
app.config
orweb.config
file. - Go to the
XML
menu and selectCreate Schema
.
>This will trigger app#.xsd
(Windows app) or web#.xsd
(Website) file(s) to generate.
- Save the newly generated xsd file(s) to the root of the project.
- Open up your
App.config
orweb.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.
Solution 7 - C#
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?
Solution 8 - C#
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.
Solution 9 - C#
In my case I had an ambiguous reference in my code. I restarted Visual Studio and was able to see the error message. When I resolved this the other error disappeared.
Solution 10 - C#
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 https://stackoverflow.com/a/31465408/288393">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"