After "npm update" not working why?

I have updated my app by “npm update”.
After that my apps are not working in serve. Most probably due to not declare property. For example
in my app there is a variable called “name” which is array of string. My previous apps ran but showed error regarding property.

but after updating apps is not running in “ionic serve”. If new ionic does not support error ignore, then how can I solve that. How can I solve below four problem ? I can solve other errors, but below 04 I cant. Plz help

Property ‘nav’ does not exist
Property ‘platform’ does not exist
Property ‘AdMob’ does not exist
Cannot find name ‘AdMob’.

with the new 2.0.0-beta.10