其实看这个错误描述就知道是嵌套的目录太多了, 把你的项目移到一级目录, 如: 我的是在 D: 盘下面很深的目录,然后我直接移动到 D: 盘下,然后重新运行命令就可以了.

Error: ELOOP: too many symbolic links encountered, stat 'D:\ng2+\ng-module\final

\node_modules\@angular\cli\node_modules\webpack\node_modules\escope\node_modules

\es6-map\node_modules\d\node_modules\es5-ext\node_modules\es6-iterator\node_modu

les\d\node_modules\es5-ext\node_modules\es6-iterator\node_modules\d\node_modules

\es5-ext\node_modules\es6-iterator\node_modules\d\node_modules\es5-ext\node_modu

les\es6-iterator\node_modules\d\node_modules\es5-ext\node_modules\es6-iterator\n

ode_modules\d\node_modules\es5-ext\node_modules\es6-iterator\node_modules\d\node

_modules\es5-ext\node_modules\es6-iterator\node_modules\d\node_modules\es5-ext\n

ode_modules\es6-iterator\node_modules\d\node_modules\es5-ext\node_modules\es6-it

erator\node_modules\d'

ELOOP: too many symbolic links encountered, stat 'D:\ng2+\ng-module\final\node_m

odules\@angular\cli\node_modules\webpack\node_modules\escope\node_modules\es6-ma

p\node_modules\d\node_modules\es5-ext\node_modules\es6-iterator\node_modules\d\n

ode_modules\es5-ext\node_modules\es6-iterator\node_modules\d\node_modules\es5-ex

t\node_modules\es6-iterator\node_modules\d\node_modules\es5-ext\node_modules\es6

-iterator\node_modules\d\node_modules\es5-ext\node_modules\es6-iterator\node_mod

ules\d\node_modules\es5-ext\node_modules\es6-iterator\node_modules\d\node_module

s\es5-ext\node_modules\es6-iterator\node_modules\d\node_modules\es5-ext\node_mod

ules\es6-iterator\node_modules\d\node_modules\es5-ext\node_modules\es6-iterator\

node_modules\d'