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I work on angular 7.1 work with core 2.1 api and windows is windows 7 .
when run web API on core 2.1 and after that open visual studio code
and write on on terminal
ng serve -o
give me compiled successfully but not show result on browser
why that done . and how to solve that problem .
i ?wdm?: Compiled successfully.
(node:9096) UnhandledPromiseRejectionWarning: Error: spawn cmd ENOENT
    at Process.ChildProcess._handle.onexit (internal/child_process.js:264:19)
    at onErrorNT (internal/child_process.js:456:16)
    at processTicksAndRejections (internal/process/task_queues.js:80:21)
(node:9096) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 1)
(node:9096) [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.

What I have tried:

I try to update from angular 7 to angular 8
put problem still exist
How to solve this problem please ?
Kornfeld Eliyahu Peter 5-Nov-19 2:37am
Unhandled promise rejection. Look for it and read about...

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