Slide Toggle Doesn't Seem to be working in Alpha 7 Error: Cannot find name 'HammerInput'

HI,

I just upgraded to Alpha 7 and after upgrade Slide Toggle seems to be broken.

When I compile my project in Visual Studio 2015 I receive the below errors:

Error       Build:Cannot find name 'HammerInput'.   node_modules\@angular2-material\slide-toggle\slide-toggle.d.ts  67  

Error   TS2304  Cannot find name 'HammerInput'. TypeScript Virtual Projects node_modules\@angular2-material\slide-toggle\slide-toggle.d.ts  67

Apparently it seems that the below line is causing the problem in slide-toggle.d.ts:

_onDrag(event: HammerInput): void;

[ctkdev]

For those finding this issue that have a similar configuration to mine: angular-material: 2.0.0-alpha.7-3 angular-cli: 1.0.0-beta.11-webpack.2

Just doing the following: $ npm install --save hammerjs @types/hammerjs

Was all that was needed. Since my tsconfig.json file contains this line: "typeRoots": [ "../node_modules/@types" ]

I did not have to make any changes to main.ts

[petersgiles]

Using angular-cli@latest (webpack)

I added hammerjs

npm install --save hammerjs @types/hammerjs

then on the last line of src/polyfills.ts I added import 'hammerjs';