After the command Check Data has been invoked, EASE calculates the sum of all faces areas. This sum can be considered as a three-dimensional value because every area is added dependent on its orientation in the room. For example two parallel faces with equal areas looking at each other would give zero.
As a result the surface integral of a closed room must also equal zero with a little tolerance.

To solve this problem: In most cases there are two or more faces in the same location. Delete one of them.

A coat face is a face that replaces (acoustically) the covered part of the face it is assigned to.

That means:

After clicking Check Data [F5], or attempting to Save Project Data [F6], I receive the following message:

"Face Mismatch or Hole in Room.
Use Check Holes to get detailed information."

What does this mean and how do I solve this problem?

This is a sign that your room model has geometry problems, the so-called “holes”. Holes are the result of violating one or more conventions of EASE and they need to be fixed before you can go on and perform simulations.
 

This error is the result of trying to save an EASE project to a network location that contains a double backslash ("\\") in the path name. To avoid the problem, please use "Map network drive" in Windows Explorer to first map the desired network folder as a hard drive on the local computer. The EASE project can then be saved to or opened from the mapped hard drive on the local computer.

It has come to my attention that EASE 4.0 will install a spyware program called XYZ. What information are you recording on my computer and what is your intended use of it?