Unable to build my app using color-picker 4

[SitaramPotunuri1]

Hi All,

Im unable to build the application using the command:
ng build --output-path=build/client --prod
Following is the error im getting:

ERROR in Cannot determine the module for class TextDirective in *****/node_modules/angular4-color-picker/lib/color-picker.directive.ts! Add TextDirective to the NgModule to fix it.
Cannot determine the module for class SliderDirective in *****/node_modules/angular4-color-picker/lib/color-picker.directive.ts! Add SliderDirective to the NgModule to fix it.
Cannot determine the module for class DialogComponent in *****/node_modules/angular4-color-picker/lib/color-picker.directive.ts! Add DialogComponent to the NgModule to fix it.