I love Mac OS X, but every once in a while I manage to screw up one (or more) of the network folders I dropped into the sidebar. (On this particular occasion I changed my mind after I started opening a network folder and clicked “Cancel” on the keychain access prompt.) Now every time I click on the network folder in the sidebar of Finder I’m getting the following message: **The volume for “*network-folder-name*” cannot be found.**
I’ve had this happen before, but I can never remember how to fix it. A quick search turned up [this thread](http://macosx.com/tech-support/volume-cannot-be-found/22482.html) which suggests blasting the entire com.apple.sidebarlists.plist file, but that’s a bit harsh if you have a dozen folders in the sidebar and only one or two of them are broken! Instead I chose to edit the plist file and delete the broken folders.
Double-clicking on com.apple.sidebarlists.plist should open the Property List Editor. Click on the exposure triangles for Root, useritems, and CustomListItems. Find the broken folder–they’re in the same order that they appear in the Sidebar. You can click the exposure triangle for a numbered item and see if the Name property matches your broken folder. Once you’ve selected the correction Dictionary item, click the Delete button:
Now if you open a new Finder window you’ll notice… That you still have the same problem. Doh! You need to restart Finder. Click on the “Apple” menu (top left of the screen) and choose “Force Quit…” (or just hit Apple-Option-Escape on the keyboard). Select the Finder application and hit the Relaunch button.
This doesn’t really *fix* the problem–the broken folder is gone, not repaired. But it’s better (imo) than whacking the entire Sidebar preferences file.