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I'm trying to assign null to a specific key in Map<String, dynamic> in order to nullify the value in my SQL DB. But I keep getting an error Error: Expected a value of type 'Object', but got one of type 'Null', in dartpad it works fine without any errors.

Here is the error I'm getting:
Error: Expected a value of type 'Object', but got one of type 'Null'
Here is my code:
Map<String, dynamic> map = {};

map["key2"] = null;
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danielR2001
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  • If you try the above code on dartpad, it doesn't throw anything. – esentis Nov 12 '22 at 10:43
  • Yes, it works for me too, but in Flutter, it still throws an error. I will add flutter doctor to my question. – danielR2001 Nov 12 '22 at 11:40
  • Where in your code are you doing this? Looks like it doesn't work at top level. See https://stackoverflow.com/questions/53908405/how-to-add-a-new-pair-to-map-in-dart – GrahamD Nov 12 '22 at 17:04
  • I found the cause of the problem, I was passing a dynamic parameter (i checked if the type is Map) to a function and was trying to change the passed parameter. Thanks for your help! – danielR2001 Nov 14 '22 at 09:48

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