deprecated_member_use_from_same_package

'{0}' is deprecated and shouldn't be used.

'{0}' is deprecated and shouldn't be used. {1}

The analyzer produces this diagnostic when a deprecated library member or class member is used in the same package in which it's declared.

The following code produces this diagnostic because x is deprecated:

@deprecated
var x = 0;
var y = x;

The fix depends on what's been deprecated and what the replacement is. The documentation for deprecated declarations should indicate what code to use in place of the deprecated code.