我正在尝试使用ng s --o来按角度运行项目，但是无法在浏览器中打开。我尝试使用ng s命令并将其放入浏览器localhost：4200中，但未添加项目运行引导文件。有什么问题吗？

C:\f>ng s --o
10% building 3/3 modules 0 activei ?wds?: Project is running at http://localhost:4200/webpack-dev-server/
i ?wds?: webpack output is served from /
i ?wds?: 404s will fallback to //index.html

chunk {main} main.js,main.js.map (main) 49.4 kB [initial] [rendered]
chunk {polyfills} polyfills.js,polyfills.js.map (polyfills) 264 kB [initial] [rendered]
chunk {runtime} runtime.js,runtime.js.map (runtime) 6.15 kB [entry] [rendered]
chunk {styles} styles.js,styles.js.map (styles) 9.68 kB [initial] [rendered]
chunk {vendor} vendor.js,vendor.js.map (vendor) 4.08 MB [initial] [rendered]
Date: 2019-11-25T19:13:27.012Z - Hash: 0e538dfb060d71b382b0 - Time: 28117ms
** Angular Live Development Server is listening on localhost:4200,open your browser on http://localhost:4200/ **
i ?wdm?: Compiled successfully.

events.js:``187
      throw er; // Unhandled 'error' event
  ^

Error: spawn cmd ENOENT
←[90m    at Process.ChildProcess._handle.onexit (internal/child_process.js:264:19)←[39m
←[90m    at onErrorNT (internal/child_process.js:456:16)←[39m
←[90m    at processTicksAndRejections (internal/process/task_queues.js:80:21)←[39m
Emitted 'error' event on ChildProcess instance at:
←[90m    at Process.ChildProcess`enter code here`._handle.onexit (internal/child_process.js:270:12)←[39m
←[90m    at`enter code here` onErrorNT (internal/child_process.js:456:16)←[39m
←[90m    at processTicksAndRejections (internal/process/task_queues.js:80:21)←[39m {
  errno: ←[32m'ENOENT'←[39m,code: ←[32m'ENOENT'←[39m,syscall: ←[32m'spawn cmd'←[39m,path: ←[32m'cmd'←[39m,spawnargs: [ ←[32m'/c'←[39m,←[32m'start'←[39m,←[32m'""'←[39m,←[32m'/b'←[39m,←[32m'http://localhost:4200/'←[39m ]
}