Is gruntFile required for integrating bpmn with react component?

helo this is my first attemt of using bpmn with react so i am facing lots of problem integrating it .I have made side tool bar display but still unable to drag and drop in the area .Do i require the gruntfile for it because as i see when i drag it is not able to capture the files i.e e.dataTransfer.files is empty so can anybody help me for integrating it .