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mixin_instantiate

Mixins can't be instantiated.

Description

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The analyzer produces this diagnostic when a mixin is instantiated.

Example

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The following code produces this diagnostic because the mixin M is being instantiated:

dart
mixin M {}

var m = M();

Common fixes

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If you intend to use an instance of a class, then use the name of that class in place of the name of the mixin.