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AY1920S2-CS2103T-T10-2 / main

MIT License
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Resolved adding cards in unopened deck issue #137

Closed haveaqiupill closed 4 years ago

sigmund-c commented 4 years ago

It shows up this error message whenever I try to add a flashcard, though the flashcard does get added

Caused by: java.lang.UnsupportedOperationException at java.base/java.util.Collections$UnmodifiableCollection.add(Collections.java:1058) at cardibuddy.logic.commands.AddCommand.execute(AddCommand.java:114) at cardibuddy.logic.LogicManager.execute(LogicManager.java:49) at cardibuddy.ui.MainWindow.executeCommand(MainWindow.java:254) at cardibuddy.ui.CommandBox.handleCommandEntered(CommandBox.java:38) ... 59 more