Reprint https://blog.csdn.net/mapbar_front/article/details/76165239
error: bundling failed: “Unable to resolve module react from C:\\Users\\liwd\\Desktop\\mywork\\react-native\\Navigator\\index.android.js: Module does not exist in the module map\n\nThis might be related to https://github.com/facebook/react-native/issues/4968\nTo resolve try the following:\n
1. Clear watchman watches: watchman watch-del-all.\n
2.Delete the node_modules folder: rm -rf node_modules && npm install.\n
3. Reset packager cache: rm -fr $TMPDIR/react-* or npm start -- --reset-cache.”
Reason for error: A Module referenced by import in index.android.js cannot be found.
First possibility:
Solution: delete node_modules folder, reload. Or, open the node_modules folder to see if the file is placed elsewhere, and re-import it after finding it.npm install- 1
The second possibility:
the versions of react and react-native do not match . Different versions of react and react-native will conflict. The feasibility of
downloading the specified version of react and react-native : directly select the react and react-native after react-native init. react-native version, then delete node_modules, and then do npm install.
Problems you may have: When npm a new package such as react-native-vector-icons, it is best to delete node_modules and re-npm install. Because of this some unknown error may occur.