Cannot read the property length undefined?

I am not into programming background and working on side shooter game. I am getting two types of errors in Intel xdk as follows:

1. Cannot read the property length undefined.

2. Can not read the indexOf....

So I am searching the solution on the same from past few weeks. I was trying using phone-gap also but getting debug apk instead of normal apk.

Now i can't get proper solution and optional way to run the package without error.

Do I need to re-develop the game again?

Now realizing that construct 2 has no facility to generate apk instead of xdk.

Why construct 2 not provide the apk instead of xdk?

Awaiting for favorable reply.