App quebrou. Por fim copiei todos os arquivos do programa do professor e ainda assim não deu certo
Logcat devolve isso:
FATAL EXCEPTION: main Process: xavier.f, PID: 9234 java.lang.RuntimeException: Unable to resume activity {xavier.f/xavier.f.ui.activity.ListaAlunosActivity}: java.lang.IllegalStateException: Migration didn't properly handle: Telefone(xavier.f.model.Telefone). Expected: TableInfo{name='Telefone', columns={tipo=Column{name='tipo', type='TEXT', affinity='2', notNull=false, primaryKeyPosition=0, defaultValue='undefined'}, alunoId=Column{name='alunoId', type='INTEGER', affinity='3', notNull=true, primaryKeyPosition=0, defaultValue='undefined'}, id=Column{name='id', type='INTEGER', affinity='3', notNull=true, primaryKeyPosition=1, defaultValue='undefined'}, numero=Column{name='numero', type='TEXT', affinity='2', notNull=false, primaryKeyPosition=0, defaultValue='undefined'}}, foreignKeys=[ForeignKey{referenceTable='Aluno', onDelete='CASCADE +', onUpdate='CASCADE', columnNames=[alunoId], referenceColumnNames=[id]}], indices=[]} Found: TableInfo{name='Telefone', columns={id=Column{name='id', type='INTEGER', affinity='3', notNull=true, primaryKeyPosition=1, defaultValue='undefined'}, numero=Column{name='numero', type='TEXT', affinity='2', notNull=false, primaryKeyPosition=0, defaultValue='undefined'}, tipo=Column{name='tipo', type='TEXT', affinity='2', notNull=false, primaryKeyPosition=0, defaultValue='undefined'}, alunoId=Column{name='alunoId', type='INTEGER', affinity='3', notNull=true, primaryKeyPosition=0, defaultValue='undefined'}}, foreignKeys=[], indices=[]} at android.app.ActivityThread.performResumeActivity(ActivityThread.java:5378) at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:5444) at android.app.servertransaction.ResumeActivityItem.execute(ResumeActivityItem.java:54) at android.app.servertransaction.ActivityTransactionItem.execute(ActivityTransactionItem.java:45) at android.app.servertransaction.TransactionExecutor.executeLifecycleState(TransactionExecutor.java:176) at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:97) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2574) at android.os.Handler.dispatchMessage(Handler.java:106) at android.os.Looper.loopOnce(Looper.java:226) at android.os.Looper.loop(Looper.java:313) at android.app.ActivityThread.main(ActivityThread.java:8757) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:571) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1067)
Alguém tem alguma idéia do que seja?