improve error message

Author: Hecate2

src/Plugins/RpcServer/RpcErrorFactory.cs

@@ -33,7 +33,7 @@ public static RpcError NewCustomError(int code, string message, string data = nu
         public static RpcError BadRequest(string data) => RpcError.BadRequest.WithData(data);
         public static RpcError InsufficientFundsWallet(string data) => RpcError.InsufficientFundsWallet.WithData(data);
         public static RpcError VerificationFailed(string data) => RpcError.VerificationFailed.WithData(data);
-        public static RpcError InvalidContractVerification(UInt160 contractHash) => RpcError.InvalidContractVerification.WithData($"The smart contract {contractHash} haven't got verify method.");
+        public static RpcError InvalidContractVerification(UInt160 contractHash, int pcount) => RpcError.InvalidContractVerification.WithData($"The smart contract {contractHash} haven't got verify method with {pcount} input parameters.");
         public static RpcError InvalidContractVerification(string data) => RpcError.InvalidContractVerification.WithData(data);
         public static RpcError InvalidSignature(string data) => RpcError.InvalidSignature.WithData(data);
         public static RpcError OracleNotDesignatedNode(ECPoint oraclePub) => RpcError.OracleNotDesignatedNode.WithData($"{oraclePub} isn't an oracle node.");

src/Plugins/RpcServer/RpcServer.Wallet.cs

@@ -494,7 +494,7 @@ private JObject GetVerificationResult(UInt160 scriptHash, ContractParameter[] ar
         {
             using var snapshot = system.GetSnapshotCache();
             var contract = NativeContract.ContractManagement.GetContract(snapshot, scriptHash).NotNull_Or(RpcError.UnknownContract);
-            var md = contract.Manifest.Abi.GetMethod(ContractBasicMethod.Verify, args.Count()).NotNull_Or(RpcErrorFactory.InvalidContractVerification(contract.Hash));
+            var md = contract.Manifest.Abi.GetMethod(ContractBasicMethod.Verify, args.Count()).NotNull_Or(RpcErrorFactory.InvalidContractVerification(contract.Hash, args.Count()));
             (md.ReturnType == ContractParameterType.Boolean).True_Or(RpcErrorFactory.InvalidContractVerification("The verify method doesn't return boolean value."));
             Transaction tx = new()
             {