Render problem in my whatsapp clone

Render problem
java.lang.reflect.InvocationTargetException at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(NativeMethodAccessorImpl.java:-2) at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:566) at android.view.LayoutInflater.onCreateView(LayoutInflater.java:934) at android.view.LayoutInflater.onCreateView(LayoutInflater.java:954) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:1008) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:965) at android.view.LayoutInflater.rInflate_Original(LayoutInflater.java:1127) at android.view.LayoutInflater_Delegate.rInflate(LayoutInflater_Delegate.java:72) at android.view.LayoutInflater.rInflate(LayoutInflater.java:1101) at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:1088) at android.view.LayoutInflater.inflate(LayoutInflater.java:686) at android.view.LayoutInflater.inflate(LayoutInflater.java:505)
What is this error and how can i remove it

This problems is occurring because Layout inflator is Unable to inflate the view. Can you share code of Adapter and corresponding xml file?
That could be more helpful in resolving the issue.

SIr I have resolved this problem for now by adding orientation to my linear layout

by mistake i have deleted my orientation line