This error gets me from time to time, regardless which server vendor, mostly on hosts that were upgraded a couple of times. In this case it was a ESXi host currently running a pretty old build of ESXi 6.7 U3 and my job was the upgrade to 7.0 Update 3c.
If you add a upgrade baseline to the cluster or host, and you try to remediate the host, the task fails with a dependency error.
EDIT: It seems that his was fixed in vCenter 7.0 U3.
While debugging a vCener Lifecycle Manager, which was unable to download updates, I’ve stumbled over a weird behaviour, which is (IMHO) by design.
Some of you might use a proxy server. And some of you might use a proxy server which requires credentials. In my case, my customer uses a Sophos SG appliance as a web proxy server with authentication.
Adding a second factor to your authentication is always a good idea. Typically the second factor is a One-Time Password (OTP) or a push notification. But what if you want to allow the login into your Horizon View environment only from specific devices? This implies that you need some kind of second factore that also identifies the device. At this point the arch enemy of many of us comes into play: Certificates!
