resolved compilation error

Author: Sridhar S

package.json

@@ -18,6 +18,7 @@
 	"devDependencies": {
 		"@types/chai": "^3.4.28",
 		"@types/es6-promise": "0.0.28",
+		"@types/requirejs": "^2.1.26",
 		"es6-promise": "^3.2.1",
 		"gulp": "^3.9.1",
 		"gulp-sass": "^3.1.0",
@@ -28,4 +29,4 @@
 	"scripts": {
 		"build": "gulp build"
 	}
-}
+}