EXCEPTION: Output event 'numPages' defined multiple times in 'Pager'

[bitbay]

Running npm run build:dev results in the index page the following runtime error:

[HMR] Waiting for update signal from WDS...
angular2.js:15194 [WDS] Hot Module Replacement enabled.
angular2-bootstrap-demo.js:9410 EXCEPTION: Output event 'numPages' defined multiple times in 'Pager'
angular2-bootstrap-demo.js:9401 EXCEPTION: Output event 'numPages' defined multiple times in 'Pager'BrowserDomAdapter.logError @ angular2-bootstrap-demo.js:9401
angular2-bootstrap-demo.js:9401 STACKTRACE:BrowserDomAdapter.logError @ angular2-bootstrap-demo.js:9401
angular2-bootstrap-demo.js:9401 Error: Output event 'numPages' defined multiple times in 'Pager'
    at new BaseException (http://localhost:8080/build/angular2.js:1452:24)
    at http://localhost:8080/build/angular2.js:8805:28
    at Array.forEach (native)
    at DirectiveResolver._merge (http://localhost:8080/build/angular2.js:8803:25)
    at DirectiveResolver._mergeWithPropertyMetadata (http://localhost:8080/build/angular2.js:8797:22)
    at DirectiveResolver.resolve (http://localhost:8080/build/angular2.js:8743:30)
    at RuntimeMetadataResolver.getDirectiveMetadata (http://localhost:8080/build/angular2-bootstrap-demo.js:8083:52)
    at http://localhost:8080/build/angular2-bootstrap-demo.js:8140:63
    at Array.map (native)
    at RuntimeMetadataResolver.getViewDirectivesMetadata (http://localhost:8080/build/angular2-bootstrap-demo.js:8140:28)BrowserDomAdapter.logError @ angular2-bootstrap-demo.js:9401