Could you please take a look at my version of this app? - error: cannot find symbol fab = findViewById(R.id.fab);

[Cloufish]

https://github.com/Cloufish/LearningProjects/tree/master/Android_Apps/ToDoList

It seems like I've got an error

error: cannot find symbol
        fab = findViewById(R.id.fab);

And I think that I've declared it correctly by:

private FloatingActionButton fab;

before findViewById method.
I'm a beginner in programming, could you give me a hint on how to solve this issue?

[b-willii]

You have to assign the floating action button an id so: "android/id/"fab"