not_binary_operator
'{0}' isn't a binary operator.
Description
#The analyzer produces this diagnostic when an operator that can only be used as a unary operator is used as a binary operator.
Example
#The following code produces this diagnostic because the operator ~
can
only be used as a unary operator:
dart
var a = 5 ~ 3;
Common fixes
#Replace the operator with the correct binary operator:
dart
var a = 5 - 3;
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