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+An associated type was implemented when another trait item was expected.
+
+Erroneous code example:
+
+```compile_fail,E0325
+struct Bar;
+
+trait Foo {
+    const N : u32;
+}
+
+impl Foo for Bar {
+    type N = u32;
+    // error: item `N` is an associated type, which doesn't match its
+    //        trait `<Bar as Foo>`
+}
+```
+
+Please verify that the associated type name wasn't misspelled and your
+implementation corresponds to the trait definition. Example:
+
+```
+struct Bar;
+
+trait Foo {
+    type N;
+}
+
+impl Foo for Bar {
+    type N = u32; // ok!
+}
+```
+
+Or:
+
+```
+struct Bar;
+
+trait Foo {
+    const N : u32;
+}
+
+impl Foo for Bar {
+    const N : u32 = 0; // ok!
+}
+```