Check for invalid modules when registering a pallet in construct_runtime (#4520)

substrate/bin/node-template/runtime/src/lib.rs

@@ -251,7 +251,7 @@ construct_runtime!(
 		Aura: aura::{Module, Config<T>, Inherent(Timestamp)},
 		Grandpa: grandpa::{Module, Call, Storage, Config, Event},
 		Indices: indices,
-		Balances: balances::{default, Error},
+		Balances: balances,
 		TransactionPayment: transaction_payment::{Module, Storage},
 		Sudo: sudo,
 		// Used for the module template in `./template.rs`