Image picker not working in ionic

return this.image_picker.getPicture
.image_picker
.getPictures({quality: 100, maximumImagesCount: 15});

when calling the above. I get the error below

vendor.js:54687 Install the ImagePicker plugin: ‘ionic cordova plugin add cordova-plugin-telerik-imagepicker’

when trying to install ionic cordova plugin add cordova-plugin-telerik-imagepicker’

it breaks. what is the way around. Is it like ionic is helpless on this?

Did you add a usage description and install the node module via npm?