[Home](./index.md) > [sip.js](./sip.js.md) > [ContentTypeUnsupportedError](./sip.js.contenttypeunsupportederror.md) ## ContentTypeUnsupportedError class An exception indicating an unsupported content type prevented execution. Signature: ```typescript export declare class ContentTypeUnsupportedError extends Exception ``` ## Constructors | Constructor | Modifiers | Description | | --- | --- | --- | | [(constructor)(message)](./sip.js.contenttypeunsupportederror._constructor_.md) | | Constructs a new instance of the ContentTypeUnsupportedError class |