Compilation error due to an unqualified private method call
class X::Method::Private::Unqualified does X::Comp { }
Compile time error thrown when a private method call on anything but self is not fully qualified.
For example
1!priv
dies with
===SORRY!=== Private method call to priv must be fully qualified with the package containing the method
method method(--> Str:D)
Returns the name of the private method that triggered the error.