Error Connecting to Substrate: Unable to initialize the API: createType(StorageKey):: Derived

Question

I've got a Substrate node running locally on my PC, following this tutorial. https://substrate.dev/docs/en/tutorials/create-your-first-substrate-chain/interact. It can be viewed on two ports:

  Local:            http://localhost:8000/substrate-front-end-template
  On Your Network:  http://192.168.56.1:8000/substrate-front-end-template

So I don't think connectivity is the issue.

Anyway, I bound the @polkadot/api to my node via the command:

yarn add @polkadot/api.

I'm now getting an error, in the browser, whenever I run my node:

Error Connecting to Substrate
Error: FATAL: Unable to initialize the API: createType(StorageKey):: Derived TypedArray constructor created an array which was too small

Can anyone help?

Answer 1

Upgrading to the latest Substrate Sidecar API resolved these issues for me.