It should create a link to the page.
NWiki markup here
(sorry, copy/paste in browser and eliminate spaces if URL breaks into two lines)
If you have used the HTML editor, you can still create a link by typing Summary of Course.
Does that work for you?
First of all:
1. What wiki are you using, NWiki or ewiki?
2. How do you create new pages? Are you using the ... approach?
3. What editor are you using?
4. Can you try a test? That is, create a new page by going to edit, and type New Page Test. It should not matter what editor you are in. Now go to the new page, and type something.
Go back to the page you started from, delete the link and save.
Now go to another page, and re-create the link. If you can't go to the page you created there is a problem in the wiki.
As a "kludge", can you go to your missing page, find the URL, and then create a link to that URL in your wiki?
If elegance does not work sometimes brute force does...
btw, the NWiki markup (I call it wikitalk) is essentially a subset of that found in Wikipedia, which runs on MediaWiki
Then copy/paste that link code into the latest version of the page.
Idea 2. Maybe the code to the orphan page got somehow corrupted. Copy/paste the content of the orphan while in edit mode. Then go to the page you want to link from, create a link to a new page (with different name), and paste the code into that page...you should have a duplicate. However, any links back to that duplicated page would have to be rewritten.
I'm using ewiki and create new pages using [...].Thanks for your suggestions, Frank. I tried them out, but unfortunately with no success. Creating a new test page and linking to it from another page did work, so presumably there isn't a problem in the wiki. Using the page's history and 'fetch-back' didn't resolve the problem. I didn't try out Idea 2 because there are lots of links from the orphaned page and it would take me at least an hour to re-create them.
However, if I can't resolve it soon I think I'll have to give up trying to sort it out and will in fact have to re-create all the links again from scratch