Problem
An error occurred while downloading the remote file. The error message, if any, is reproduced below. Please fix this error and try again.
Cause
You are running vagrant init outside your virtual box
Solution
cd to your vagrant directory. If you did a vagrant box add solar, then your virtual box is in the directory solar.
$ cd solar
If there is not VagrantFile, run the following command:
$ vagrant init
If there is a VagrantFile
$ vagrant up