"validation script for the argument with value ".\createcert.json" did not return a result of True." error while installing Sitecore 10.1

Question

I am trying to install Sitecore 10.1 through SIF but I am getting the below exception..

Cannot retrieve the dynamic parameters for the cmdlet. Cannot validate argument on parameter 'Source'. The " Test-Path $_ -Type Leaf " validation script for the argument with value ".\createcert.json" did not return a result of True. Determine why the validation script failed, and then try the command again.

Answer 1

I was facing exactly the same issue and I did not have any previous Sitecore versions installed on my machine. So the above fix did not work for me:

So I found the root cause, I made a very silly mistake but added my answer so that others can refer and avoid doing the same mistake again.

When we download Sitecore installer(graphical UI), it is zipped, and I was trying to install Sitecore software without unzipping the .zip(Sitecore 10.2.0 rev. 006766 (Setup XP0 Developer Workstation rev. 1.4.0-r5).zip) folder.

I thought, it might work without unzipping and going ahead, but it failed, after that I unzipped it and it worked fine eventually.

Answer 2

I was able to resolve this issue by removing all Sitecore 10.1 related certificates from mmc and start the setup again.

Steps

1. From Run window type mmc and hit ok
2. From file menu, click on "Add or Remove Snap-Ins"
3. Select Certificates and click "Add" and then "Ok"
4. Expand "Personal" folder and click on "Certificates"
5. Search for any existing certificates that are related to Sitecore 10.1
6. Delete those certificates.