EN_raw_main_first_positional_parameter_type

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                  main_first_positional_parameter_type

            main_first_positional_parameter_type

Details about the 'main_first_positional_parameter_type' diagnostic produced by the Dart analyzer.

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            *The type of the first positional parameter of the 'main' function must be a supertype of 'List'.*

            Description

            #

            The analyzer produces this diagnostic when the first positional parameter
            of a function named `main` isn't a supertype of `List<String>`.

            Example

            #

            The following code produces this diagnostic because `List<int>` isn't a
            supertype of `List<String>`:

              dart

void main(List<int> args) {}

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              Common fixes

              #

              If the function is an entry point, then change the type of the first
              positional parameter to be a supertype of `List<String>`:

                dart

void main(List<String> args) {}

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If the function isn't an entry point, then change the name of the function:

                dart

void f(List<int> args) {}

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                Unless stated otherwise, the documentation on this site reflects Dart 3.13.3. Report an issue.