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As you can see, this blank Commands lens is now on my Unity Launcher, without installing any related software. It launches the Run a command dialog (like Alt+F2) but it has no icon...how did it get there? Is it related to recent Unity updates? Or maybe to some application? If so, how can I get rid of it, since there's no file under /usr/share/unity/places? Thanks for your time!

The mysterious Commands lens

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Can you check if you have a mangled file somewhere in /usr/share/unity/places? –  Jorge Castro Jun 17 '11 at 16:10
    
No files whatsoever there, aisde from applications.place and files.place. By the way, I just found out that the ghost lens can be replaced above or below the other lenses, but not above the worskpace switcher nor the launchers. –  Tigull Jun 18 '11 at 12:38
    
I showed this problem to some unity devs and they've never seen this before, if you could file a bug on this problem it would be great: askubuntu.com/questions/5121/how-do-i-report-a-bug –  Jorge Castro Jun 18 '11 at 16:48

2 Answers 2

What it is, is a bug. File a report on launchpad.net and gain some Karma. Attach that screenshot. :)

As for how you get rid of it, if you press alt+f2 and run compiz --replace, then I'm fairly sure it'll go away.

As a wild guess, I'd say "Commands" is the default label for launcher quicklists and that somehow, an empty and unconfigured launcher entry has been created for some reason. But it's a wild guess and it might very well be entirely wrong.

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I experienced something similar. I tried to add a launchericon to the launcher, which was executing the xkill command. It worked but instead of a symbol there was a blank space, however by rightclicking and clicking keep in the launcher I could remover this issue.

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I should have showed it in the picture, but there isn't any option nor quicklist when right clicking the "ghost" icon. There' s just a Commands options which launches the dialog exactly the same way as a left-click does. –  Tigull Jun 16 '11 at 19:06

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