Question 119771 in Firebase Question posted in
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Firebase – The method '[]' can't be unconditionally invoked because the receiver can be 'null'. In Model

I have this problem in my snapshot

The method ‘[]’ can’t be unconditionally invoked because the receiver can be ‘null’.
Try making the call conditional (using ‘?.’) or adding a null check to the target (‘!’).

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Greetings I hope you are very well, someone could help me, it is my first time creating a mobile app and with firebare.

I tried by Var, put ! and nothing, I am not very aware of the error.

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2

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  1. Chosen as BEST ANSWER
    0

    I changed the version of the dependencies and the problem was solved.

    before

    firebase_core: ^2.1.1
cloud_firestore: ^4.0.3
firebase_database: ^10.0.2

    after

    firebase_core: ^1.4.0
cloud_firestore: ^3.1.5
firebase_database: ^6.0.0

  2. 0

    try this

    var horario = snapshot.value == null ? "" : snapshot.value!['nombre'];
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