Browserify Error { Error: Using `babel-preset-react-app` requires that you
specify `NODE_ENV` or `BABEL_ENV` environment variables. Valid values are
"development", "test", and "production". Instead, received: undefined.
While processing preset:
"C:\OpenServer\domains\yarmobile.local\node_modules\babel-preset-react-
app\index.js") while parsing file:
C:OpenServerdomainsyarmobile.localsrcappmain.js