Getting error while implementing RPC [Substrate]

[jaxter03]

Hi all, I am getting error while implementing custom RPC for my Runtime API :-

error[E0277]: the trait bound `<C as sp_api::ProvideRuntimeApi<sp_runtime::generic::Block<sp_runtime::generic::Header<u32, sp_runtime::traits::BlakeTwo256>, sp_runtime::OpaqueExtrinsic>>>::Api: runtime_api::DexStorageApi<sp_runtime::generic::Block<sp_runtime::generic::Header<u32, sp_runtime::traits::BlakeTwo256>, sp_runtime::OpaqueExtrinsic>>` is not satisfied
  --> node/src/rpc.rs:54:17
   |
54 |     io.extend_with(rpc::DexStorageApi::to_delegate(
   |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `runtime_api::DexStorageApi<sp_runtime::generic::Block<sp_runtime::generic::Header<u32, sp_runtime::traits::BlakeTwo256>, sp_runtime::OpaqueExtrinsic>>` is not implemented for `<C as sp_api::ProvideRuntimeApi<sp_runtime::generic::Block<sp_runtime::generic::Header<u32, sp_runtime::traits::BlakeTwo256>, sp_runtime::OpaqueExtrinsic>>>::Api`

[JoshOrndorff]

The error makes it sound like your custom RPC needs a corresponding custom runtime API which is not installed in your runtime. If you do need this custom runtime API please install it. If you don't know what custom runtime API I'm talking about then you probably copied the recipe code and modified it incorrectly.

In either case, we can help you but we will need to see you complete code. Is it on github somewhere?

[jaxter03]

Thanks @JoshOrndorff