> uglifyjs-webpack-plugin@0.4.6 postinstall C:\Users\94905\es6-webpack\node_modules\uglifyjs-webpack-plugin                                                     > node lib/post_install.js                                                                                                                                      'node' ▒▒▒▒▒ڲ▒▒▒▒ⲿ▒▒▒Ҳ▒▒▒ǿ▒▒▒▒еij▒▒▒                                            ▒▒▒▒▒▒▒▒▒ļ▒▒▒                                                                   npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.1.3 (node_modules\fsevents):                                                                         npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.1.3: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})                                                                                                                                                               npm ERR! code ELIFECYCLE                                                        npm ERR! errno 1                                                                npm ERR! uglifyjs-webpack-plugin@0.4.6 postinstall: `node lib/post_install.js`  npm ERR! Exit status 1                                                          npm ERR!                                                                        npm ERR! Failed at the uglifyjs-webpack-plugin@0.4.6 postinstall script.        npm ERR! This is probably not a problem with npm. There is likely additional logging output above.                                                                                                                                              npm ERR! A complete log of this run can be found in:                            npm ERR!     C:\Users\94905\AppData\Roaming\npm-cache\_logs\2019-01-24T12_57_22_928Z-debug.log