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title: Troubleshooting
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# Troubleshooting

> For the full documentation index, see: https://docs.mulesoft.com/llms.txt

Troubleshoot errors you recieve when using API Designer:

- [Common Problems in Conforming to RAML 0.8](https://docs.mulesoft.com/design-center/design-common-problems-raml-08)

- [Common Problems in Conforming to RAML 1.0](https://docs.mulesoft.com/design-center/design-common-problems-raml-10)

- [Guide to Defining Examples in RAML 1.0](https://docs.mulesoft.com/design-center/design-named-examples)

- [Best Practices when using API Designer](https://docs.mulesoft.com/design-center/design-best-practices)

- [Common Errors in Specifying Required Fields in JSON Schemas](https://docs.mulesoft.com/design-center/design-json-schema-required-error)

- [Differences for OAS 3.0 in Rendered Documentation](https://docs.mulesoft.com/design-center/design-documentation)

- [Simulate Calls to an API](https://docs.mulesoft.com/design-center/design-mocking-service)

- [Add Behavioral Headers to Simulated API Calls](https://docs.mulesoft.com/design-center/apid-behavioral-headers)

- [API Designer Troubleshooting](https://docs.mulesoft.com/design-center/apid-general-troubleshooting)

## See Also

- [Known Issues](https://help.salesforce.com/s/issues)