EN_raw_map_entry_not_in_map

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•                   map_entry_not_in_map
  
              map_entry_not_in_map
  

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

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Map entries can only be used in a map literal.

              Description

              #

              The analyzer produces this diagnostic when a map entry (a key/value pair)
              is found in a set literal.

              Example

              #

              The following code produces this diagnostic because the literal has a map
              entry even though it's a set literal:

                dart

var collection = <String>{'a': 'b'};

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              Common fixes

              #

              If you intended for the collection to be a map, then change the code so
              that it is a map. In the previous example, you could do this by adding
              another type argument:

                dart

var collection = <String, String>{'a': 'b'};

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              In other cases, you might need to change the explicit type from `Set` to
              `Map`.

              If you intended for the collection to be a set, then remove the map entry,
              possibly by replacing the colon with a comma if both values should be
              included in the set:

                dart

var collection = <String>{'a', 'b'};

                content_copy

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