We are trying to build our own form-field-Components at our Company. We are trying to wrap material design\'s Components like this:
field:
I'm not sure if it could be this simple but I had the same issue, changing "mat-input" to "matInput" in the input field resolved the problem. In your case I see "matinput" and it's causing my app to throw the same error.
"matinput"
"matInput"