You don't seem to have a generator with the name “react-webpack” installed.
But help is on the way:
You can see available generators via npm search yeoman-generator or via http://yeoman.io/generators/.
Install them with npm install generator-react-webpack.
To see all your installed generators run yo without any arguments. Adding the --help option will also show subgenerators.
If yo cannot find the generator, run yo doctor to troubleshoot your system.
Here is what i get on running "yo react-webpack"
You don't seem to have a generator with the name “react-webpack” installed. But help is on the way:
You can see available generators via npm search yeoman-generator or via http://yeoman.io/generators/. Install them with npm install generator-react-webpack.
To see all your installed generators run yo without any arguments. Adding the --help option will also show subgenerators.
If yo cannot find the generator, run yo doctor to troubleshoot your system.