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This question already has an answer here:

When I try to launch google-chrome, I get the following message:

Failed to create a ProcessSingleton for your profile directory. 
This means that running multiple instances would start multiple browser processes
rather than opening a new window in the existing process. 
Aborting now to avoid profile corruption.

I tried to uninstall and reinstall Chrome following the advice here How to install Chrome browser properly via command line?, which did not solve my problem.

How should I proceed?

marked as duplicate by Mitch Jan 1 '15 at 14:46

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

  • Welcome to AskUbuntu! ;-) Could you please review my edits and for the future, use [Ctrl][K] or backticks "`" to highlight code and improve readability? – Fabby Jan 1 '15 at 12:39
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Your .config and .pki folder in home directory might be assigned with root permission.

Type sudo chown -R {username}:{username} ~/.config ~/.pki

Note: Replace {username} with your username that you are logged on in.

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