Question: I created a new document from a SharePoint Template.
Entered text in body of document.
Saved file.
Updated Title from Doc Properties Panel.
Saved file – ok
Closed document – "Do you want to check in?"
Clicked Yes – 0.1 version, clicked OK.
Got this error: "Cannot Perform the operation. The file is no longer checked out or has been deleted."

Any help would be great thanks.

Answer: 
I quite often had this issue with the Sharepoint Designer. My problem was solved by clearing the cache of the Sharepoint Designer as shown here:

<http://www.raihaniqbal.net/blog/2013/02/sharepoint-designer-the-file-is-no-longer-checked-out-or-has-been-deleted/>

Create a batch (\*bat) with a editor with following code:

```
cd "%APPDATA%\Microsoft\Web Server Extensions\Cache"
del *.web /S /Q "%APPDATA%\Microsoft\Web Server Extensions\Cache"
cd "%USERPROFILE%\AppData\Local\Microsoft\WebsiteCache\"
rmdir /S /Q "%USERPROFILE%\AppData\Local\Microsoft\WebsiteCache\."
mkdir "%USERPROFILE%\AppData\Local\Microsoft\WebsiteCache"
dir "%APPDATA%\Microsoft\Web Server Extensions\Cache"
dir "%USERPROFILE%\AppData\Local\Microsoft\WebsiteCache"
pauseenter code here

```
There are so many reasons which may cause this issue.

One of them may be is 

`Alternative Access Mappings` were set to access the site as 

if your site is configured to be use as `http://site.company.com` and if you are accessing the site as `http://site`, then this may happen .

start using the full address and hope the problem will go away.