anchor.diff:              }
             }
           } else {
  -          print('validToken: false, error');
             this.setState(() {
               successfulSubmission = false;
               didError = true;
  
positive.code:         });
        }
      } catch (e) {
        print('_handleBarcodeSubmission: An error occurred.');
        this.setState(() {
          successfulSubmission = false;
          didError = true;
  
negative.code:           });
          }
        } else {
          this.setState(() {
            successfulSubmission = false;
            didError = true;
  