Troubleshooting 
Common issues and fixes.
No tests found 
- Ensure 
.catalyst/tests.tomlexists or pass--file. - Run from project root.
 
Variables not substituted 
- Use 
--var key=value,token=$TOKEN. - Use 
in strings; env uses$. - Env precedence: 
.env.local>.env.dev>.env. 
Auth (401/403) 
- Verify header names and values.
 - Extract cookies/tokens before using.
 
Flaky response time checks 
- Raise 
max_response_timefor CI variance. - Isolate perf-sensitive tests.
 
More: ../getting-started/running_tests.md