I am getting an error while executing a remote PowerShell script. From my local machine I am running a PowerShell script that uses Invoke-Command to cd into a directory on a remote Amazon Windows Server instance, and a subsequent Invoke-Command to execute script that lives on that server instance. The script on the server is trying to git clone a repository from GitHub. I can successfully do things in the server script like "ls" or even "git --version". However git clone, git pull, etc. result in the following error:

Cloning into 'MyRepo'... + CategoryInfo : NotSpecified: (Cloning into 'MyRepo'...:String) [], RemoteException + FullyQualifiedErrorId : NativeCommandError

This is my first time using PowerShell or a Windows Server. Can anyone provide some direction on this problem.

The client script:

$s = new-pssession -computername $server -credential $user
invoke-command -session $s -scriptblock { cd C:\Repos; ls } 
invoke-command -session $s -scriptblock { param ($repo, $branch) & '.\clone.ps1' -repository $repo -branch $branch} -ArgumentList $repository, $branch
exit-pssession

The server script:

param([string]$repository = "repository", [string]$branch = "branch")
git --version
start-process -FilePath git -ArgumentList ("clone", "-b $branch    https://github.com/MyGithub/$repository.git") -Wait 

I've changed the server script to use start process and it is no longer throwing the exception. It creates the new repository directory and the .git directory but doesn't write any of the files from the github repository. This smells like a permissions issue. Once again invoking the script manually (remote desktop into the amazon box and execute it from powershell) works like a charm.