angular reactive form formGroup expects a FormGroup instance. Please pass one in site:stackoverflow.com code example
Example: formGroup expects a FormGroup instance. Please pass one in. Example: In your class: this.myGroup = new FormGroup({ firstName: new FormControl() });.
// HTML form Group Name is Different may be Lower case Or Upper Case
<div [formGroup]="merchantResourceForm">
MerchantResourceForm = new FormGroup({