# Error Handling Almost all of the APIs available from the EIL return `EILReturnCode`. The documentation for each function Error Handling outlines the potential return conditions. Every effort has been made to ensure that invalid usage of the IL is caught and presented with a meaningful return code. Additionally, a log error or warning will typically be issued via the logging mechanism. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.v-nova.com/technologies/mpeg-5.lcevc/encoder/sdk/eil/eil-integration-process/error-handling.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.