sishuoyang / ng2-gauge-with-color-band Goto Github PK

I want to use this in my Ionic app
It works fine with ionic serve but when run on device it sowing error

"Uncaught (in promise): TypeError: undefined is not a function↵TypeError: undefined is not a function↵ at Cn (file:///android_asset/www/build/vendor.js:1:29542)↵ at kn (file:///android_asset/www/build/vendor.js:1:28039)↵ at fi (file:///android_asset/www/build/vendor.js:1:42705)↵ at Di (file:///android_asset/www/build/vendor.js:1:46212)↵ at ki (file:///android_asset/www/build/vendor.js:1:45419)↵ at fi (file:///android_asset/www/build/vendor.js:1:42930)↵ at li (file:///android_asset/www/build/vendor.js:1:41506)↵ at Object.Ii [as createRootView] (file:///android_asset/www/build/vendor.js:1:48046)↵ at e.create (file:///android_asset/www/build/vendor.js:1:106913)↵ at e.create (file:///android_asset/www/build/vendor.js:1:76742)

Can you help me with this warning I get upon running ng build --prod --aot=true

WARNING in ./node_modules/ng2-gauge-with-color-band/ng2-gauge-with-color-band.ngfactory.js
18:193-198 "export 'ɵa' (imported as 'i1') was not found in 'ng2-gauge-with-color-band'

WARNING in ./node_modules/ng2-gauge-with-color-band/ng2-gauge-with-color-band.ngfactory.js
19:74-79 "export 'ɵa' (imported as 'i1') was not found in 'ng2-gauge-with-color-band'

It is not compatible with newer version of NPM ,please update it to latest version

I used the same steps but i am unable to see the graphs on the page.I am not getting any error .Sample provide some sample demo application link ?