Maven Build Error

[Sri]

I'm using Angular 10

Package                      Version

------------------------------------------------------

@angular-devkit/architect    0.1000.1

@angular-devkit/core         10.0.1

@angular-devkit/schematics   10.0.1

@schematics/angular          10.0.1

@schematics/update           0.1000.1

rxjs                         6.5.5

Why am I getting below npm clean install build error? Thanks.

[INFO] > u...@0.0.0 build C:\Users\zzz\Angular\lineitems\src\main\ui

[INFO] > ng build

[INFO] 

[ERROR] Unknown error: Error: Cannot find module 'through'

[ERROR] npm ERR! file C:\Windows\system32\cmd.exe

[ERROR] npm ERR! code ELIFECYCLE

[ERROR] npm ERR! errno ENOENT

[ERROR] npm ERR! syscall spawn

[ERROR] npm ERR! u...@0.0.0 build: `ng build`

[ERROR] npm ERR! spawn ENOENT

[ERROR] npm ERR! 

[Michael Glaser]

Did you search for "through" in your code? That seems like something not marked as a comment.