I found this error while during the running of my application. please can anybody help me to get out from this

i want to run my application smoothly my ip is same for both devices and paste correct ip at retrofitclient.java file

CodePudding user response：

1. Maybe remove the space between " and 192.
2. Give more information about what you are trying to do with what devices and code with it.

CodePudding user response：

NullPointerexception error is showing at login response java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String com.example.usermanagement.ModelResponse.LoginResponse.getMessage()' on a null object reference enter image description here