Cannot find module 'tslib'

I am Facing an issue in ionic angular app.

E:\project\ionic\uvparentlan>ionic serve

ng.cmd run app:serve --host=localhost --port=8100
[ng] An unhandled exception occurred: Cannot find module ‘tslib’
[ng] See “C:\Users\UV\AppData\Local\Temp\ng-w1vBnO\angular-errors.log” for further details.

[ERROR] ng has unexpectedly closed (exit code 127).

    The Ionic CLI will exit. Please check any output above for error details.

Angular CLI: 8.1.3
Node: 10.16.0
OS: win32 x64
Angular: 8.1.3
… cli, common, compiler, compiler-cli, core, forms
… language-service, platform-browser, platform-browser-dynamic
… router

Package Version

@angular-devkit/architect 0.801.3
@angular-devkit/build-angular 0.801.3
@angular-devkit/build-optimizer 0.801.3
@angular-devkit/build-webpack 0.801.3
@angular-devkit/core 8.1.3
@angular-devkit/schematics 8.1.3
@ngtools/webpack 8.1.3
@schematics/angular 8.1.3
@schematics/update 0.801.3
rxjs 6.5.2
typescript 3.4.5
webpack

Can you recreate this in a new project?
or can you provide a sample project that has this issue?

Sounds like your dependencies are messed up.