subgraph resolve error

[ancjf]

I run the command:
yarn setup

You get an error:
✖ Failed to deploy to Graph node http://127.0.0.1:8020/: subgraph resolve error: resolve error: Serialization error: Invalid operation type error. at line 28 column 3
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

I deleted the contents of the schema.graphql file:

• kind: ethereum/contract
  name: NameWrapper
  network: ethereum
  source:
  abi: NameWrapper
  mapping:
  kind: ethereum/events
  apiVersion: 0.0.5
  language: wasm/assemblyscript
  file: ./src/nameWrapper.ts
  entities:
  - NameWrapper
  abis:
  - name: NameWrapper
  file: ./abis/NameWrapper.json
  eventHandlers:
  - event: "NameWrapped(indexed bytes32,bytes,address,uint32,uint64)"
  handler: handleNameWrapped
  - event: "NameUnwrapped(indexed bytes32,address)"
  handler: handleNameUnwrapped
  - event: "FusesSet(indexed bytes32,uint32,uint64)"
  handler: handleFusesSet

yarn setup
It works.

Revision: 64564ba

Please help me!