출첵 failing

fail.log

  [472] ./~/redux-logger/lib/index.js 8.49 kB {0} [built]
  [473] ./src/containers/LectureContainer/LectureContainer.js 4.32 kB {0} [built]
  [474] ./src/containers/LectureContainer/LectureActions.js 376 bytes {0} [built]
  [475] ./src/components/Lecture/Lectures.js 3.37 kB {0} [built]
  [476] ./src/components/Lecture/Lecture.js 3.6 kB {0} [built]
  [477] ./src/components/Lecture/Lecture.css 937 bytes {0} [built] [1 error]
  [479] ./~/style-loader/addStyles.js 7.21 kB {0} [built]
  [480] ./~/react-select/lib/Select.js 30.5 kB {0} [built]
  [481] ./~/react-select/~/react-input-autosize/lib/AutosizeInput.js 4.67 kB {0} [built]
  [482] ./~/react-select/~/classnames/index.js 1.1 kB {0} [built]
  [483] ./~/react-select/lib/Value.js 2.17 kB {0} [built]
  [484] ./~/react-select/lib/SingleValue.js 707 bytes {0} [built]
  [485] ./~/react-select/lib/Option.js 2.1 kB {0} [built]
  [486] ./~/react-select/dist/react-select.min.css 900 bytes {0} [built] [1 error]
  [488] ./src/reducers.js 334 bytes {0} [built]
  [489] ./src/containers/LectureContainer/LectureReducers.js 880 bytes {0} [built]
  [490] ./src/containers/LectureContainer/constants.js 173 bytes {0} [built]

ERROR in ./~/css-loader!./~/react-select/dist/react-select.min.css
Module build failed: ReferenceError: Promise is not defined
    at LazyResult.async (/Users/Seulgi/private_repo/choolcheck/frontend/node_modules/css-loader/node_modules/postcss/lib/lazy-result.js:157:31)
    at LazyResult.then (/Users/Seulgi/private_repo/choolcheck/frontend/node_modules/css-loader/node_modules/postcss/lib/lazy-result.js:79:21)
    at processCss (/Users/Seulgi/private_repo/choolcheck/frontend/node_modules/css-loader/lib/processCss.js:198:5)
    at Object.module.exports (/Users/Seulgi/private_repo/choolcheck/frontend/node_modules/css-loader/lib/loader.js:24:2)
 @ ./~/react-select/dist/react-select.min.css 4:14-77

ERROR in ./~/css-loader!./src/components/Lecture/Lecture.css
Module build failed: ReferenceError: Promise is not defined
    at LazyResult.async (/Users/Seulgi/private_repo/choolcheck/frontend/node_modules/css-loader/node_modules/postcss/lib/lazy-result.js:157:31)
    at LazyResult.then (/Users/Seulgi/private_repo/choolcheck/frontend/node_modules/css-loader/node_modules/postcss/lib/lazy-result.js:79:21)
    at processCss (/Users/Seulgi/private_repo/choolcheck/frontend/node_modules/css-loader/lib/processCss.js:198:5)
    at Object.module.exports (/Users/Seulgi/private_repo/choolcheck/frontend/node_modules/css-loader/lib/loader.js:24:2)
 @ ./src/components/Lecture/Lecture.css 4:14-84
webpack: bundle is now VALID.