./src/App.js Module not found: Can't resolve './components/MineSiteInput;' in 'E:\topcoder\topcoder-learning-react\src' code example

Example 1: module not found: can't resolve 'react' in 'c:\users\pavlos\desktop\reactjs\hwr\reactproject2\src'

type:  npm install react
next command type : npm install react-dom
that's the solution.

Example 2: webpack Error can't resolve ./src

make shore that you write "webpack.config.js" and not "webpack-config.js"