Application crash after loggining in about chatapptutorial HOT 5 OPEN

add the code below
if (String.valueOf(snapshot.getKey()).matches("-(.*)")) {

like this

for (DataSnapshot snapshot : dataSnapshot.getChildren()) { if (String.valueOf(snapshot.getKey()).matches("-(.*)")) { Chat chat = snapshot.getValue(Chat.class);

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-it was my bad, database was somehow broken and I removed invalid user and now it works perfectly fine.-

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I have the same problem ,I set the permission to true in realtime datbase after that the app is crashing after login in .Can you please help?

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dont use this classpath 'com.google.gms:google-services:4.1.0' its seems like theres something wrong in this version u could use 4.2.0 wish u all the luck

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java.lang.NullPointerException: Attempt to invoke virtual method 'boolean java.lang.String.equals(java.lang.Object)' on a null object reference
at com.koddev.chatapp.Fragments.UsersFragment$3.onDataChange(UsersFragment.java:124)
after I login or register
Any suggestion?

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