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+#### Note: this error code is no longer emitted by the compiler.
+
+Too few type arguments were supplied for a function. For example:
+
+```compile_fail,E0107
+fn foo<T, U>() {}
+
+fn main() {
+    foo::<f64>(); // error: wrong number of type arguments: expected 2, found 1
+}
+```
+
+Note that if a function takes multiple type arguments but you want the compiler
+to infer some of them, you can use type placeholders:
+
+```compile_fail,E0107
+fn foo<T, U>(x: T) {}
+
+fn main() {
+    let x: bool = true;
+    foo::<f64>(x);    // error: wrong number of type arguments:
+                      //        expected 2, found 1
+    foo::<_, f64>(x); // same as `foo::<bool, f64>(x)`
+}
+```