Proxmox import wizard from VMware esxi

@wifi_guy welcome to the forums! Thanks for posting this out. I think many are going to start using the import wizard to migrate from VMware over to Proxmox. Let me ask this, guessing you are pointed directly at your ESXi host and not vCenter right? Also, do you perhaps have any VMware snapshots on the VM in question? It sounds like you have tried multiple VMs, but just want to rule this out. Snapshots on a VM will cause this import process to fail with similar errors.

As an alternate way, you can manually convert VMDK files to the .qcow2 format. Here is the overview of that process. First you could either mount the Synology to your Proxmox host and then work with the files that way or you could copy the VMDKs over to your Proxmox host storage and then run the conversion:

Find your vmdk files for the VM on the Synology NAS or local storage if you have copied over
Copy the vmdk files to a temporary directory on the Proxmox server. Convert the vmdk files to Proxmox-compatible qcow2 format:

qemu-img convert -f vmdk -O qcow2 source.vmdk target.qcow2

Then you can just create a new VM in Proxmox and attach the converted disk files.