Npm安装错误:错误:404未找到:flatmap-stream@0.1.2

npm install ,

6397 verbose stack Error: 404 Not Found: flatmap-stream@0.1.2
6397 verbose stack     at fetch.then.res (C:\Users\\AppData\Roaming\npm\node_modules\npm\node_modules\pacote\lib\fetchers\registry\fetch.js:42:19)
6397 verbose stack     at tryCatcher (C:\Users\\AppData\Roaming\npm\node_modules\npm\node_modules\bluebird\js\release\util.js:16:23)
6397 verbose stack     at Promise._settlePromiseFromHandler (C:\Users\\AppData\Roaming\npm\node_modules\npm\node_modules\bluebird\js\release\promise.js:512:31)
6397 verbose stack     at Promise._settlePromise (C:\Users\\AppData\Roaming\npm\node_modules\npm\node_modules\bluebird\js\release\promise.js:569:18)
6397 verbose stack     at Promise._settlePromise0 (C:\Users\\AppData\Roaming\npm\node_modules\npm\node_modules\bluebird\js\release\promise.js:614:10)
6397 verbose stack     at Promise._settlePromises (C:\Users\\AppData\Roaming\npm\node_modules\npm\node_modules\bluebird\js\release\promise.js:693:18)
6397 verbose stack     at Async._drainQueue (C:\Users\\AppData\Roaming\npm\node_modules\npm\node_modules\bluebird\js\release\async.js:133:16)
6397 verbose stack     at Async._drainQueues (C:\Users\\AppData\Roaming\npm\node_modules\npm\node_modules\bluebird\js\release\async.js:143:10)
6397 verbose stack     at Immediate.Async.drainQueues (C:\Users\\AppData\Roaming\npm\node_modules\npm\node_modules\bluebird\js\release\async.js:17:14)
6397 verbose stack     at runCallback (timers.js:810:20)
6397 verbose stack     at tryOnImmediate (timers.js:768:5)
6397 verbose stack     at processImmediate [as _immediateCallback] (timers.js:745:5)

节点版本为:8.12.0,NPM版本为6.1.0,

任何帮助都将不胜感激。