VisualWebPart - Adding to schema.xml

Hi guys,

I have one question regarding to add a visual web part to a Schema.XML.

If I have this visual Webpart:

<?xml version="1.0" encoding="utf-8"?><webParts><webPart xmlns="http://schemas.microsoft.com/WebPart/v3"><metaData><type name="SharePoint_Z_Drive_Project.WP_ErrorField.WP_ErrorField, $SharePoint.Project.AssemblyFullName$" /><importErrorMessage>$Resources:core,ImportErrorMessage;</importErrorMessage></metaData><data><properties><property name="Title" type="string">Error</property><property name="Description" type="string">Error Field WebPart</property></properties></data></webPart></webParts>

How do I have to add it to the Schema.xml of a list Definition in the forms area?

I tried this way:

<Form Type="EditForm"
            SetupPath="pages\form.aspx"
            WebPartZoneID="Main"
            Url="MyEditForm.aspx"
            Default="TRUE"><WebParts><AllUsersWebPart WebPartZoneID="Main" WebPartOrder="1"><![CDATA[<WebPart xmlns="http://schemas.microsoft.com/WebPart/v3"><Assembly>$SharePoint.Project.AssemblyFullName$, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c</Assembly> <TypeName="SharePoint_Z_Drive_Project.WP_ErrorField.WP_ErrorField, $SharePoint.Project.AssemblyFullName$"></TypeName><FrameType>None</FrameType></WebPart>
            ]]></AllUsersWebPart></WebParts>     </Form>

Is there something wrong?

Because when I edit an item in the list, I got this error message:

Web Part Error: The file you imported is not valid. Verify that the file is a Web Part description file (*.webpart or *.dwp) and that it contains well-formed XML.

Error Details:
[WebPartPageUserException: The file you imported is not valid. Verify that the file is a Web Part description file (*.webpart or *.dwp) and that it contains well-formed XML.]
  at Microsoft.SharePoint.WebPartPages.WebPartImporter.CreateXdoc(XmlReader reader) 
  at Microsoft.SharePoint.WebPartPages.WebPartImporter..ctor(SPWebPartManager manager, XmlReader reader, Uri webPartPageUri, SPWeb spWeb) 
  at Microsoft.SharePoint.WebPartPages.WebPartImporter.Import(SPWebPartManager manager, XmlReader reader, Boolean clearConnections, Uri webPartPageUri, SPWeb spWeb) 
  at Microsoft.SharePoint.WebPartPages.SPWebPartManager.CompressWebPartNoSave(Boolean isClosed)