Contract Exception: Cannot Call Method Neo.SmartContract.Manifest.ContractMethodDescriptor

[ixje]

I was trying to call a method on a smart contract that was not properly white listed in NEF permissions list.

The error message was not so help full

Engine State Fault: Exception has been thrown by the target of an invocation. [TargetInvocationException]
  Contract Exception: Cannot Call Method Neo.SmartContract.Manifest.ContractMethodDescriptor Of Contract 0x17dc5af926d8fcdb55e2c0a4d95433913e002423 From Contract 0xdd80e618e328203461db2d422d93d54b3f4a6cd6 [InvalidOperationException]
Gas Consumed: 0.1919967

Specifically this part "Cannot Call Method Neo.SmartContract.Manifest.ContractMethodDescriptor" should probably print the (iirc) name attribute instead

[ixje]

Appears to be an issue in the core, fixed by neo-project/neo#2860