bodyMovin JSON Export Issue

When I import the Json file into After Effects, AE does not detect the png file in Json (the png is available in my local) When I import the png file to After effects and export it as Json with bodyMovin, the png file is corrupted in the preview I made in Lottie. How can I render the png file as json without any problem? I will use the json file as loading animation on a mobile app.
Hope you can help!