Problem

Given the following configuration:

kind: source
spec:
  name: aws
  version: v3.8.0
  destinations: [postgresql]
  path: cloudquery/aws
---
kind: destination
spec:
  name: postgresql
  version: v1.6.0
  spec:
    connection_string: postgresql://postgres:pass@localhost:5432/postgres

The CLI fails with a confusing error:

Starting migration for: aws -> [postgresql]
Migration completed successfully.
Starting sync for: aws -> [postgresql]
Error: failed to write for aws->postgresql: failed to call Write.Send: EOF
exit status 1

The reason is that the AWS plugin in the config uses protocol version 1, while the PostgreSQL plugin uses version 2.

Proposed solution

The CLI should verify all plugins use the same protocol version and if not prompt users to update the relevant ones