[Solved]-Webpack: ERROR in ./src/index.tsx Module not found: Error: Can't resolve './App' in '...'-Reactjs

add the following to your webpack config:

module.exports = {
    // ...
    // existing code goes here
    // ...

    resolve: {
        extensions: ['.ts', '.tsx'],
    },
};

more info in the docs.

nebuler 1475

Source: stackoverflow.com