NPM install-g @angular/cli@latest failure _typescript

The first error message is

Error "@angular/COMPILER-CLI" package is not properly installed

The following error information appears in the attempted scenario two o'clock

NPM err! Code eintegrity
NPM err! sha1-omjbxbx6n5nvnwrvkffdgvdt2dq= Integrity checksum failed when using sha1:wanted sha1-omjbxbx6n5nvnwrvkffdgvdt2dq= But got sha1-pvzuut5szaqjmvkcciwuicpr9ky=. (259028 bytes)

NPM err! A Complete log of this run can is found in:
NPM err! C:\Users\sp\AppData\Roaming\npm-cache_logs\2017-09-20T04_31_14_778Z-debug.log

Tried a variety of scenarios

Scenario One (failed)

Clear Cache

NPM Cache Verify

Programme II (failure)

1.Uninstall and Clean (global)

RM-RF node_modules Dist
npm uninstall-g @angular/cli
NPM Cache Verify

2.Reinstall and Play (global)

NPM install-g @angular/cli@latest
npm install
ng serve

The ultimate solution is

Grep-ir "sha1-omjbxbx6n5nvnwrvkffdgvdt2dq= Integrity Checksum" (NPM's installation directory)

Run NPM Install again

The typescript and angular CLI are then updated globally, and the typescript and angular CLI are updated by the directory
Ng Server completes