Hi, could you please ensure you’ve followed the getting started instruction step by step without skipping any steps as described here: GitHub - PDFTron/pdftron-react-native: A convenience wrapper for building react native apps with PDFTron mobile SDK. ?
We offer sample project here: GitHub - PDFTron/react-native-sample: Sample to demonstrate integrating PDFTron in React Native
Could you try running this one to see if it works in your environment? If the sample works, could you please compare the differences with your project?
Thanks.