Cannot `Add-PoshGitToProfile -AllHosts` in installation

[WorikQCI]

During installation I struck this:

Add-PoshGitToProfile -AllHosts​​​​​​​
Test-Path : Cannot bind argument to parameter 'LiteralPath' because it is an empty string.
At C:\Users\64211\Documents\WindowsPowerShell\Modules\posh-git\1.1.0\Utils.ps1:208 char:34
+     if (!(Test-Path -LiteralPath $profileDir)) {
+                                  ~~~~~~~~~~~
    + CategoryInfo          : InvalidData: (:) [Test-Path], ParameterBindingValidationException
    + FullyQualifiedErrorId : ParameterArgumentValidationErrorEmptyStringNotAllowed,Microsoft.PowerShell.Commands.Test
   PathCommand

C:\Users\64211> Add-PoshGitToProfile -AllHosts​​​​​​​
WARNING: Skipping add of posh-git import to file '-AllHosts​​​​​​​'.
WARNING: posh-git appears to already be imported in one of your profile scripts.
WARNING: If you want to force the add, use the -Force parameter.
C:\Users\64211>

I do not know if it matters but it is disconcerting

System Details

Forgive me. I am a reluctant and novice windows user. I am happy to be responsive if it will help fix something but I am not happy to learn to answer, accurately, the following things unless there is a clear reason.

• posh-git version/path: Latest
• PowerShell version: Latest
• Git version: Latest, but not relevant
• Operating system name and version: Windows. on a laptop.

To retrieve the system details, paste the following line into PowerShell, press Enter and then copy/paste the resulting output above.

"- posh-git version/path: $($m = Get-Module posh-git; '{0} {1} {2}' -f $m.Version,$m.PrivateData.PSData.Prerelease,$m.ModuleBase.Replace($HOME,'~'))n- PowerShell version: $($PSVersionTable.PSVersion)n- $( git --version)`n- OS: $([System.Environment]::OSVersion)"

posh-git version/path: $($m = Get-Module posh-git; '{0} {1} {2}' -f $m.Version,$m.PrivateData.PSData.Prerelease,$m.ModuleBase.Replace($HOME,'~'))`n- PowerShell version: $($PSVersionTable.PSVersion)`n- $(
>> git --version)`n- OS: $([System.Environment]::OSVersion)
posh-git : The term 'posh-git' is not recognized as the name of a cmdlet, function, script file, or operable program.
Check the spelling of the name, or if a path was included, verify that the path is correct and try again.
At line:1 char:1
+ posh-git version/path: $($m = Get-Module posh-git; '{0} {1} {2}' -f $ ...
+ ~~~~~~~~
    + CategoryInfo          : ObjectNotFound: (posh-git:String) [], CommandNotFoundException
    + FullyQualifiedErrorId : CommandNotFoundException

That did not go well!

[WorikQCI]

Instructions I followed:

Install-Module posh-git -Scope CurrentUser -Force
Import-Module posh-git
Add-PoshGitToProfile -AllHosts​​​​​​​

That last instruction was where I started to see problems. But considering that posh-git is: "...is not "recognized as the name of a cmdlet, function, script file,..." the problem may be more fundemental