bxiaopeng
Application crashes on startup (Android Studio)
Hello,
I'm creating (or rather trying to create) an application that is supposed to connect to an automatic greenhouse via bluetooth. This application works with a database that I created with Firebase.
I also use a repository.
Problem, when I add the lines:
val repo = ProgramRepository()
repo.updateData()
The application opens and closes immediately! Here is what is marked in the "Run" tab of android studio:
E/AndroidRuntime: FATAL EXCEPTION: main
Process: fr.max.serreconnecte, PID: 3335
java.lang.ExceptionInInitializerError
at fr.max.serreconnecte.ProgramRepository.updateData(ProgramRepository.kt:23)
at fr.max.serreconnecte.MainActivity.onCreate(MainActivity.kt:16)
at android.app.Activity.performCreate(Activity.java:8093)
at android.app.Activity.performCreate(Activity.java:8067)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1310)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3452)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3651)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:85)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2104)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:236)
at android.app.ActivityThread.main(ActivityThread.java:7861)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:600)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:967)
Caused by: com.google.firebase.database.DatabaseException: Failed to get FirebaseDatabase instance: Specify DatabaseURL within FirebaseApp or from your getInstance() call.
at com.google.firebase.database.FirebaseDatabase.getInstance(com.google.firebase:firebase-database@@19.2.1:97)
at com.google.firebase.database.FirebaseDatabase.getInstance(com.google.firebase:firebase-database@@19.2.1:57)
at fr.max.serreconnecte.ProgramRepository$Singleton.
I didn't find any answer on the forums Help would be greatly appreciated. Thanks in advance
