"An unexpected error has occurred" displayed in vCenter Updates tab due to version incompatibility

Products

• VMware vCenter Server
• VMware vSphere ESXi

Issue/Introduction

An unexpected error occurs when clicking the Updates tab on a cluster object in the vSphere Client.

The following error message is displayed on the screen: "An unexpected error has occurred"

Environment

VMware vCenter Server 8.x
VMware vSphere ESXi 8.x

Cause

This error can occur if there is a version incompatibility between the vCenter Server and ESXi.

Resolution

To resolve this issue, please check the compatibility between your vCenter Server and ESXi versions by utilizing the matrix link below. If you find an incompatibility, update the vCenter Server or ESXi hosts to match the compatible versions.

Product Interoperability Matrix
https://interopmatrix.broadcom.com/Interoperability