When trying to deploy an OVA file, VMware shows the following error:
Failed to deploy OVF package: The request was aborted: The request was canceled.
Additionally, the vSphere client console may show a a failed status with the message:
The task was canceled by a user
This is typically caused by a corrupted download. Since the OVA is merely a TAR file, one way to verify the OVA file is to try to untar the file using 7-Zip in WIndows or the tar command in Mac/Linux.
If file corruption is determined to be the culprit, the resolution is to download the ZIP file again from the download site.