ng add ng-alain@next的安装报错

Question

【环境】
cnpm@6.0.0 
npm@6.4.1 
node@10.11.0 (C:Program Filesnodejsnode.exe)
npminstall@3.12.0
win32 x64 10.0.17134
registry=https://registry.npm.taobao.org
【问题】
ng add ng-alain@next
Installing packages for tooling via npm.
npm WARN checkPermissions Missing write access to D:ReusableWorkspaceJSangulardemonode_modulesansi-colors
npm WARN checkPermissions Missing write access to D:ReusableWorkspaceJSangulardemonode_modulesasn1