Cannot publish Webpart - "Invalid SPlistItem. The SPListItem provided is not compatible with a Publishing Page"

Question

Hello All,
I have seen this error message discussed in other posts on the forums here but the solution of deactivating and reactivating server publishing/infrastructure are not working for me. In fact I encountered additional errors when reactivating publishing at
the site level. Powershell was necessary to reactivate site level server publishing.
Here is detail of the error I get when attempting to publish:
Event code: 3005
Event message: An unhandled exception has occurred.
Event time: 18/11/2014 08:59:05
Event time (UTC): 18/11/2014 08:59:05
Event ID: e2e43649e2164e399fe0aa85892a002c
Event sequence: 165799
Event occurrence: 17
Event detail code: 0
Application information:
Application domain: /LM/W3SVC/1827921427/ROOT-1-130607489469090399
Trust level: WSS_Custom
Application Virtual Path: /
Application Path: C:\inetpub\wwwroot\wss\VirtualDirectories\portal.cooperstc.com443\
Machine name: CTCSP2
Process information:
Process ID: 7392
Process name: w3wp.exe
Account name: COOPERS\svcSPPortalAppPool
Exception information:
Exception type: ArgumentException
Exception message: Invalid SPListItem. The SPListItem provided is not compatible with a Publishing Page.
Request information:
Request URL: https://portal.cooperstc.com:443/CLG/Student/Videos/Pages/Test101.aspx
Request path: /CLG/Student/Videos/Pages/Test101.aspx
User host address: 10.33.50.119
User: COOPERS\yangro
Is authenticated: True
Authentication Type: Negotiate
Thread account name: COOPERS\svcSPPortalAppPool
Thread information:
Thread ID: 41
Thread account name: COOPERS\svcSPPortalAppPool
Is impersonating: False
Stack trace:    at Microsoft.SharePoint.Publishing.PublishingPage.GetPublishingPage(SPListItem sourceListItem)
at Microsoft.SharePoint.Publishing.Internal.WebControls.PublishingPageStateControl.RaisePostBackEventForPageRouting(String eventArgument, SPRibbonCommandHandler control, RaisePostBackEventDelegate raisePostBackEventDelegate)
at Microsoft.SharePoint.Publishing.Internal.WebControls.PublishingPageSaveAndStopEditHandler.RaisePostBackEvent(String eventArgument)
at System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument)
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

Answer 1

DeActive and then ReActivate Sharepoint Site Publishing Infrastructure feature at both Site And Web level Scope.
To Deactivate at web level, Open SharePoint Site. Click on Site Actions -> Site Settings, then click on Manage site features and then Deactivate Publishing Infrastructure feature.
Similarly you can deactivate at site level, Open SharePoint Site. Click on Site Actions -> Site Settings, then Site collection administration and then go to Site collection features. there deactivate Publishing Infrastructure feature.
To Reactivate again the feature, follow the above steps.
http://www.c-sharpcorner.com/Blogs/15338/invalid-splistitem-the-splistitem-provided-is-not-compatibl.aspx
1.The simple thing is to try deactivate and reactive the publishing features both at site collection and site level.
2. If the above doesn't work then proceed to below PowerShell script.
 $site = Get-SPSite "http://www.mysites/  "
$web = $site.openweb()
 $correctId = $web.Lists["Pages"].ID $web.AllProperties["__PagesListId"] = $correctId.ToString()
$Web.AllProperties["__PublishingFeatureActivated"]="True" 
$web.Update()
3. The key point is PublishingFeatureActivated bag which has to be true .
http://webcache.googleusercontent.com/search?q=cache:5xpx-C9kKgsJ:nagendra-gunaga.blogspot.com/2013/11/the-splistitem-provided-is-not.html+&cd=4&hl=en&ct=clnk&gl=in
If this helped you resolve your issue, please mark it Answered. You can reach me through http://itfreesupport.com/