On the page with the title "Error: no workspace", it contains the following text:

There's no workspace for this project. Possible reasons are:

1. The project was renamed recently and no build was done under the new name.
2. The slave this project has run on for the last time was removed.
3. The workspace directory (null) is removed outside Jenkins.

None of these three items are the reason I have no workspace. The reason is that I clicked the "Wipe Out Workspace" link. This should be added to the above text as item #4.

Not a big deal, but it would make it more accurate