Fix loader errors
Declare required attribute 'SolutionId' in Solution
Define a valid GUID for attribute 'SolutionId' in Solution
Remove unused files from Solution package
Declare element 'SafeControl' for each implemented WebControl
Deploy referenced Assembly with correct version, culture and public key token
Do not set SPSite.CatchAccessDeniedException property
Do not set SPSite.ReadLocked property
Do not use SPWeb.Properties property
Do not call deprecated members
Do not implement deprecated interfaces
Do not inherit from deprecated type
Do not reference deprecated types
Remove empty Resource files
Avoid duplicate keys in Resource file
Declare required attributes in SiteDefinition
Declare element 'SiteDefinition' in Solution
Do not reference WebApplication Feature in attribute 'VisibilityFeatureDependency'
Declare required attributes in Feature
Define a valid GUID for attribute 'Id' in Feature
Remove spaces from Feature folder
Define attribute 'Title' in Feature with max. 255 characters
Do not define attribute 'ActiveOnDefault' in Feature with Scope 'Web' or 'Site'
Do not define attribute 'AutoActivateInCentralAdmin' in Feature with Scope 'Farm'
Define required attributes for Feature receiver
Define correct SolutionId in Feature
Define ReceiverAssembly in Feature correctly
Define Version in Feature correctly
Add missing assembly for 'ReceiverAssembly' in Feature
Deploy the 'ReceiverAssembly' of a Feature to GAC
Declare attribute 'Title' in Feature
Do not define Feature Id with curly brackets
Add Resources when DefaultResourceFile is declared
Declare required fields in FieldType
Do not declare field 'InternalType' in FieldTypes
Do not declare field 'SQLType' in FieldTypes
Declare field 'FieldTypeClass' in FieldType
Do not use obsolete RenderPattern in FieldTypes
Do not use PropertySchema in FieldTypes
Do not define Field in Feature with scope 'WebApplication' or 'Farm'
Add curly brackets to Field ID
Define a unique Field ID
Define Field ID as valid GUID
Declare required attributes in Field
Define Field DisplayName with max. 255 characters
Do not use deprecated attribute 'FromBaseType'
Declare all recommended attributes in Field
Do not define lower case attribute 'Id' in Field
Declare attribute 'Mult' for Type 'LookupMulti' and 'UserMulti'
Define a unique Field Name
Define a unique Field StaticName
Do not define ContentType ID longer than 1024 characters
Do not define ContentType in Feature with scope 'WebApplication' or 'Farm'
Declare required attributes in ContentType
Do not define duplicate ContentType ID
Do not define ContentType Name longer than 124 characters
Define ContentTypes ID as hexadecimal GUID
Do not declare attributes in ContentType which are reserved for internal use
Do not declare obsolete attributes in ContentType
Inherit ContentType from existing parent ContentType
Define correct parent FeatureId in ContentType
Define attribute 'Inherits' to FALSE in ContentType if RemoveFieldRef are used
Define attribute 'Inherits' to FALSE in ContentType if Custom Forms are used
Avoid XML comments inside a ContentType definition
Do not define Module in Feature with scope 'WebApplication' or 'Farm'
Add missing referenced File for Module
Declare File element in Module
Do not define ListInstance in Feature with scope 'WebApplication' or 'Farm'
Declare required attributes in ListInstance
Define unique value for attribute 'Id' in ListInstance
Deploy missing ListTemplate for ListInstance
Remove curly brackets from attribute FeatureId in ListInstance
Deploy missing ListDefinition in CustomSchema of ListInstance
Do not define ListTemplate in Feature with scope 'WebApplication' or 'Farm'
Declare required attributes in ListTemplate
Do not define ListTemplate Name with spaces
Define unique attribute 'Type' for ListTemplate
Deploy missing Image in ListTemplate
Do not deploy Taxonomy fields using ListTemplate.
Do not define ContentTypeBinding in Feature with scope 'WebApplication' or 'Farm'
Declare required attribute in CustomAction
Define unique value for 'Id' in CustomAction
Deploy missing file in UrlAction for CustomAction
Deploy missing file in ImageUrl for CustomAction
Deploy missing file in Ribbon for CustomAction
Deploy missing file in CommandUIHandler for CustomAction
Declare required attributes in CustomActionGroup
Do not define Receiver in Feature with scope 'WebApplication' or 'Farm'
Declare Scope for Receivers in Site Features
Do not define Receiver 'EmailReceived' on SiteCollection level.
Define ControlAssembly and ControlClass in DelegateControl
Deploy missing assembly from attribute ControlAssembly
Deploy missing control from attribute ControlSrc
Do not define Worfklow in Feature with scope 'Web', 'WebApplication' or 'Farm'
Declare required attributes in Workflow
Define a valid GUID for attribute 'Id' in Workflow
Do not define DocumentConveter in Feature with scope 'Web', 'Site' or 'Farm'
Declare property 'Title' in WebParts
Declare required attributes in FieldRef
Define attribute 'ID' with curly brackets in FieldRef
Define attribute 'ID' in FieldRef in correct casing
Declare required attributes in RemoveFieldRef
Do not declare ignored attributes in RemoveFieldRef
Define attribute 'ID' with curly brackets in RemoveFieldRef
Do not define TemplateAssociation in Feature with scope 'Web'
Declare required attributes in TemplateAssocation
Do not define PropertyBag in Feature with scope 'WebApplication' or 'Farm'
Declare required attributes in FeatureActivationDependency
Define optional attributes in FeatureActivationDependency correctly
Do not add ActivationDependency to hidden Feature
Do not add ActivationDependency to a Feature with a more restrictive scope
Do not add cross-scope ActivationDependency to a hidden Feature
Do not chain ActivationDependencies of Features when last Feature is visible
Do not create circular chain of FeatureActivationDependencies
Declare element 'DefaultDescription' in schema of ListTemplate
Declare required attributes in schema of ListTemplate
Deploy missing assembly for WebService (.svc)
Declare required attributes in WebTemplate
Derive WebTemplate from an existing Template
Declare recommended attributes in WebTemplate
Do not declare obsolete attributes
Define Boolean attributes in upper case
Remove spaces from resource keys
Add translation for a resource key
Expand Minimize

Declare element 'DefaultDescription' in schema of ListTemplate

The element 'DefaultDescription' must be declared in the schema.xml of a ListTemplate.

CheckId SPC017510
TypeName DeclareDefaultDescriptionInListDefinition
Severity CriticalWarning
Type List
Resolution

Add element 'DefaultDescription' to the element 'MetaData' in the schema.xml of the ListTemplate.
MSDN:
A DefaultDescription element specifies the description that is displayed for the list definition in the UI.
This element is overridden by the Description attribute of the List element that corresponds to the current list definition that is specified within a configuration in Onet.xml.
Important: A value for this element must be specified in custom list definitions.
See sample below:

<List xmlns:ows="Microsoft SharePoint" Title="Tasks" >
   <MetaData>
      <ContentTypes>
      ...
      </ContentTypes>
      <Fields>
      ...
      </Fields>
      <Views>
      ...
      </Views>
      <DefaultDescription>$Resources:core,camlidT13;</DefaultDescription>
   </MetaData>
</List>

See also
Message Suppression

To suppress this violation in XML SharePoint code add the following comment right before the XML tag which causes the rule violation. Learn more about SuppressMessage here.

<!-- "SuppressMessage":{"rule":"SPC017510:DeclareDefaultDescriptionInListDefinition","justification":"Provide reason for suppression here"} -->
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