Getting same error again again: Error: Cannot find module \'babel-preset-es2015\'.
Full error log:
ERROR in ./main.js M         
        
For Babel version 6 the package name is babel-preset-es2015 and for Babel version 7 the package name is @babel/preset-es2015.
From the error it seems that you're using version 7. The es20XX-presets are deprecated, so I recommend you switch to @babel/preset-env.
First install the preset (using npm): 
npm install --save-dev @babel/preset-env
Then add the preset to your .babelrc
{
    presets: ["@babel/preset-env"]
}