TestExecute displays this message when you are trying to perform some operations on the Microsoft Team Foundation Version Control.
To work with this version control system, you need to have Team Explorer on your computer. This message indicates that you have no supported Team Explorer version installed.
To solve the problem:
Install a supported version of Team Explorer on your computer.
Team Explorer is part of the Microsoft Visual Studio. You need to install Team Explorer for Microsoft Visual Studio 2012 - 2017.
Restart TestExecute in order for it to detect Team Explorer on your computer.
For more information on working with Team Foundation Version Control, see Integration With Microsoft Team Foundation Version Control in TestComplete documentation.