Question: I installed Magento 2 on Ubuntu 14.04, and tried to examine whether anything I need to update in Magento system.

I enter "Web Setup Wizard" from admin panel, but it shows the error message at the first step.

> 
> "Sorry, we can't take that action right now."
> 
> 
> 

I have tried to find the solution in the official document, but nothing is found.

[![enter image description here](https://i.stack.imgur.com/rRvXD.jpg)](https://i.stack.imgur.com/rRvXD.jpg)

Answer: 
Just had the same problem with my install. Resolved it by entering the Public / Private Access Keys (in the Web Setup Wizard's System Config, 'Magento Marketplace').

You can get these when you log into your account on magento.com - Click on 'Connect' tab at top, then click on 'Developers' button to reveal 'Secure Keys' link. Click on it to manage / create keys.
Most of the time, the problem is caused by the fact that you're not authenticated.

But sometimes, it's caused by the fact that you installed Magento 2 by cloning the GitHub repository.

In that case, you cannot use the Web Setup Wizard and have to run the following commands:

```
git pull origin
composer update

```

More details can be found here: <http://devdocs.magento.com/guides/v2.0/comp-mgr/trouble/cman/were-sorry.html>