我升级到了角度5并注意到我的构建在VSTS上失败（本地工作正常）
看起来无法找到angular-cli中的dep。任何解决方案？
构建输出
[command]C:\Windows\system32\cmd.exe /D /S /C ""C:\Program Files\nodejs\npm.cmd" run build -- "--env=nightlybuild""
2018-01-29T19:06:23.9805943Z
2018-01-29T19:06:23.9807508Z > aes-web-portal@0.0.0 build d:\a\1\s\AESWebPortal\aes-web-portal
2018-01-29T19:06:23.9808541Z > ng build "--env=nightlybuild"
2018-01-29T19:06:23.9809016Z
2018-01-29T19:06:26.8023599Z Cannot find module 'uglifyjs-webpack-plugin'
2018-01-29T19:06:26.8041057Z Error: Cannot find module 'uglifyjs-webpack-plugin'
2018-01-29T19:06:26.8041907Z at Function.Module._resolveFilename (module.js:469:15)
2018-01-29T19:06:26.8042680Z at Function.Module._load (module.js:417:25)
2018-01-29T19:06:26.8043360Z at Module.require (module.js:497:17)
2018-01-29T19:06:26.8044136Z at require (internal/module.js:20:19)
2018-01-29T19:06:26.8046229Z at Object.<anonymous> (d:\a\1\s\AESWebPortal\aes-web-portal\node_modules\@angular\cli\models\webpack-configs\production.js:13:24)
2018-01-29T19:06:26.8047263Z at Module._compile (module.js:570:32)
2018-01-29T19:06:26.8048144Z at Object.Module._extensions..js (module.js:579:10)
2018-01-29T19:06:26.8048743Z at Module.load (module.js:487:32)
2018-01-29T19:06:26.8049274Z at tryModuleLoad (module.js:446:12)
2018-01-29T19:06:26.8049758Z at Function.Module._load (module.js:438:3)
2018-01-29T19:06:26.8050286Z at Module.require (module.js:497:17)
2018-01-29T19:06:26.8050774Z at require (internal/module.js:20:19)
2018-01-29T19:06:26.8051383Z at Object.<anonymous> (d:\a\1\s\AESWebPortal\aes-web-portal\node_modules\@angular\cli\models\webpack-configs\index.js:9:10)
2018-01-29T19:06:26.8052009Z at Module._compile (module.js:570:32)
2018-01-29T19:06:26.8052499Z at Object.Module._extensions..js (module.js:579:10)
2018-01-29T19:06:26.8052975Z at Module.load (module.js:487:32)