I have a application in which i am writing yhe data into the database,now i am i

I have a application in which i am writing yhe data into the database,now i am importing this application in another environment,but when i am trying to write the data into DB it is throwing me an error
Details: java.lang.NullPointerException: null Data:
Recommended Action: Examine the activity class to correct the error and then resume. ,
When i am trying to run in the server which the application is developed its running fine.

steps which we followed
step1: created an App in server 1
step2:imported the same app in server 2
step3 : deleted the same app in server 2
step4 : reimported the same app in server 2,

Then this problem occured. please suggest us what is the problem behind it ...

OriginalPostID-133842

OriginalPostID-133842