Rectangle tool not working

[bithar35357337]

I'm trying to draw a simple rectangle, it doesn't do anything. When I double click and set dimensions, this error appears: 

(I'm referring to this tool: )

[Jacob Bugge · Accepted solution]

bithar,

If a simple restart fails to correct this, you can reset the preferences as described in the following link.

If you have customized settings that you wish to keep, first create a backup of these setting as described.

https://helpx.adobe.com/illustrator/kb/troubleshoot-preference-issues.html