OVA - SHA256 Import Error

 I had an issue with an older version of ESX and when I tried to import a OVA I got this error:

This is because the version of ESX we are using needs to be converted from SHA256 to SHA1, if the file is in the wrong format you will get the error:

The following manifest files entry (line 1) is invalid : SHA256

To fix this visit this website and download the OVFTool:

https://developer.vmware.com/web/tool/ovf-tool/

Then once you have this tool you can convert the OVA to a supported format with this:

ovftool.exe --shaAlgorithm=SHA1 <original_OVA> <new_OVA>

That should look like this :