Components: Unexpected directive 'MdToolbar' imported by the module 'AppModule'

[nitishkumarnitc]

MdToolbar raising error with angular4.

My code:
import { MdToolbar} from "@angular/material";

imports:[MdToolbar]

Error: Unexpected directive 'MdToolbar' imported by the module 'AppModule'

[devversion]

Looks like you want to import the MdToolbarModule?

[jelbourn]

Missing MdToolbarModule in whichever NgModule your component is declared within.

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