How to find the cause on FunctionClauseError

  ** (throw) %KeyError{key: :message, message: nil, term: %FunctionClauseError{args: nil, arity: 1, clauses: nil, function: :parse_unsigned, kind: nil, module: Float}}

I have an error message with upper.
KeyError is becasue the key is not in Map,i understood.
But i can not understand the FunctionClauseError where inside.
In my code, i have never use the Float module, so where its cause?
If you have some idea, thank you very much!

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Welcome to the forum! 欢迎光临

It would be helpful to include more information.

Can you provide the full stacktrace with the error and the code where this is failing?


Thank you for your reply.
It’s just a business code question, finally i find the cause.
At that time i spent a lot of time on it that made me confused.
I should be more careful, thank you.

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