invalid-api-version

Id

@azure-tools/typespec-java/invalid-api-version

Severity: error

This diagnostic is issued when the api-version emitter option is neither a declared service version nor latest or all.

Impact

The requested API-version projection cannot be selected, so Java client generation fails.

❌ Incorrect Usage

@service
@versioned(Versions)
namespace Contoso;

enum Versions {
  v1,
  v2,
}

options:
  "@azure-tools/typespec-java":
    api-version: v3

Diagnostic Message

Invalid api-version option: 'v3'. The value should be an api-version, 'latest', or 'all'.

✅ How to Fix

Use a version declared by the service, or use latest or all.

options:
  "@azure-tools/typespec-java":
    api-version: v2