如何为离子工程添加android平台

Question

当我要添加android plaform时，遇到了这个错误。

F:\OLLE\olle>cordova platform add android
Using cordova-fetch for cordova-android@7.0.0
(node:15100) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 1): CordovaError: Failed to fetch platform cordova-android@7.0.0
Probably this is either a connection problem, or platform spec is incorrect.
Check your connection and platform name/version/URL.
Error: cmd: Command failed with exit code 4294963238 Error output:
npm WARN checkPermissions Missing write access to F:\OLLE\olle\node_modules\extglob
npm WARN checkPermissions Missing write access to F:\OLLE\olle\node_modules\recast

npm WARN checkPermissions Missing write access to cess to F:\OLLE\olle\node_modules\unreachable-branch-transform
Some other same errors...
npm WARN checkPermissions Missing write access to F:\OLLE\olle\node_modules\cordova-android
npm WARN checkPermissions Missing write access to F:\OLLE\olle\node_modules\ionic-angular
npm WARN checkPermissions Missing write access to F:\OLLE\olle\node_modules\ionicons
npm WARN checkPermissions Missing write access to F:\OLLE\olle\node_modules\rxjs
npm WARN The package protractor is included as both a dev and production dependency.

npm ERR! path F:\OLLE\olle\node_modules\extglob
npm ERR! code ENOENT
npm ERR! errno -4058
npm ERR! syscall access
npm ERR! enoent ENOENT: no such file or directory, access 'F:\OLLE\olle\node_modules\extglob'
npm ERR! enoent This is related to npm not being able to find a file.
npm ERR! enoent

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\Administrator\AppData\Roaming\npm-cache\_logs\2018-04-15T05_45_21_245Z-debug.log
(node:15100) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code

首先，这个命令运行良好。当我删除android平台后，当我尝试重新添加android平台时，它就出了问题。有人知道怎么修吗？

Answer 1

删除Android文件夹后，rm nodemoduls，并再次添加，如果它将不工作，然后创建新的项目，粘贴src文件夹，并添加之后，所有插件工作良好。

Answer 2

我同意@Praveen，我也会这么做：

ionic cordova platform rm android
rm -rf node_modules
ionic cordova platform add android

还记得使用cordova命令与离子。这可能会使这个过程更完整。

也可以检查您对创建项目的文件夹的权限，但可能在cordova之前添加离子型文件来修复某些问题。