Error: Your personal site cannot be created because the managed path "personal" has not been created for this site. Contact your site administrator for more information.

Error:

Your personal site cannot be created because the managed path "personal" has not been created for this site. Contact your site administrator for more information.

Reason:

You haven't added the "Managed Path" for the the "My Site".

Solution:

Just follow the below steps to add "Personal" path as "Managed Path".

1. Go to "Central admin"

2. Select "Application Management" and select the specific "Web Application".

3. Type the 'MySite Host' URL as I mentioned in the above image. (I have created new site collection for MySite. So, I have added 'sites/mysite/personal' in the above screenshot).

4. Click OK.

Thats it...