error on styleinject about rollup-plugin-postcss HOT 6 CLOSED

import resolve from 'rollup-plugin-node-resolve';
import babel from 'rollup-plugin-babel';
import uglify from 'rollup-plugin-uglify';
import postcss from 'rollup-plugin-postcss'

export default {
  input: 'src/scripts/main.js',
  output: {
    file: 'build/js/main.min.js',
    format: 'iife',
    name: 'react'
  },
  plugins: [
    postcss(),
    uglify(),
    resolve(),
    babel({
      exclude: 'node_modules/**' // only transpile our source code
    })
  ]
};

{
  "name": "reactes6",
  "version": "1.0.0",
  "description": "This is the Real Time Electronic Area Canvassing Tool",
  "main": "build/js/main.min.js",
  "scripts": {
    "build": "rollup -c",
    "dev": "rollup -c --watch",
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "keywords": [],
  "author": "",
  "license": "MIT",
  "devDependencies": {
    "babel-core": "^6.26.0",
    "babel-plugin-external-helpers": "^6.22.0",
    "babel-preset-env": "^1.6.1",
    "babel-preset-es2015-rollup": "^3.0.0",
    "rollup": "^0.56.3",
    "rollup-plugin-babel": "^3.0.3",
    "rollup-plugin-node-resolve": "^3.0.3",
    "rollup-plugin-postcss": "^1.3.1",
    "rollup-plugin-uglify": "^3.0.0"
  },
  "dependencies": {}
}

var react = (function (exports,styleInject) {
'use strict';

styleInject = styleInject && styleInject.hasOwnProperty('default') ? styleInject['default'] : styleInject;


var css = "*bunch of css*";
styleInject(css);