Why??? Why??? with VS 2015 (???)

Question

Hi!

 

I would like to install the VS 2015 on my computer.

But I receive the same message as for 2013.

 

 Unable to locate package source:

 

- Download package from internet

- Skip package

- Please provide a location to search the package

 

In VS 2010 this message never appear. Then who can help me to resolv it.

 

Thanks