error when using it with angular 4

[ma1rius]

this is what i get whe tryng to add angular 4 material Uncaught Error: Template parse errors:
'lf-ng-md-file-input' is not a known element:

1. If 'lf-ng-md-file-input' is an Angular component, then verify that it is part of this module.
2. If 'lf-ng-md-file-input' is a Web Component then add 'CUSTOM_ELEMENTS_SCHEMA' to the '@NgModule.schemas' of this component to suppress this message. ("
   [ERROR ->]<lf-ng-md-file-input name="files" lf-files="ctrl.files" lf-required lf-maxcount="1" lf-mimetype="audi"): ng:///AppModule/UploadComponent.html@1:4
   'md-button' is not a known element:
3. If 'md-button' is an Angular component, then verify that it is part of this module.
4. If 'md-button' is a Web Component then add 'CUSTOM_ELEMENTS_SCHEMA' to the '@NgModule.schemas' of this component to suppress this message. ("
   
   Mimetype error.

[Puff12138]

got the same problem as yours, that's because this is a [AngularJS] module, which use .js file(JavaScript), while [angular 2/4] use .ts(TypeScript) and a different concept for Module.

i'm trying to find the way to "use angularjs module in angular2 project", as far as i know by now, we should "upgrade" the module and add it as <script> in index.html, here are 2 links for us to get some ideas:
https://stackoverflow.com/questions/35237319/use-angularjs-angular1-module-from-angular2-project
https://stackoverflow.com/questions/34401354/angular2-beta-bootstrapping-http-providers-unexpected-token/34402203#34402203

and keep in touch if one of us get the clear answer