Error when use ngSemantic with Angular6

[longjingjun]

I follow the instruction to install ng-semantic. It is installed.

When I try to start the app using "ng serve", I got the following error:

ERROR in ./node_modules/ng-semantic/src/search/search.js Module not found: Error: Can't resolve 'rxjs/add/operator/debounceTime' in '/Users/user/Documents/Work/NodeJS_WorkSpace/LibraryManager/node_modules/ng-semantic/src/search' ERROR in ./node_modules/ng-semantic/src/search/search.js Module not found: Error: Can't resolve 'rxjs/add/operator/distinctUntilChanged' in '/Users/user/Documents/Work/NodeJS_WorkSpace/LibraryManager/node_modules/ng-semantic/src/search'

Here is my info:

`
Angular CLI: 6.0.8
Node: 8.9.3
OS: darwin x64
Angular: 6.0.7
... animations, common, compiler, compiler-cli, core, forms
... http, language-service, platform-browser
... platform-browser-dynamic, router

Package Version

@angular-devkit/architect 0.6.8
@angular-devkit/build-angular 0.6.8
@angular-devkit/build-optimizer 0.6.8
@angular-devkit/core 0.6.8
@angular-devkit/schematics 0.6.8
@angular/cli 6.0.8
@ngtools/webpack 6.0.8
@schematics/angular 0.6.8
@schematics/update 0.6.8
rxjs 6.2.1
typescript 2.7.2
webpack 4.8.3

`

[thenewnet]

Need to import the library as below:
npm install --save rxjs-compat@6

it is worked for me.

[francocores]

Need to import the library as below:
npm install --save rxjs-compat@6

it is worked for me.

thanks / gracias