--- sidebar_label: TimeoutError --- # TimeoutError class TimeoutError is emitted whenever certain operations are terminated due to timeout. #### Signature: ```typescript export declare class TimeoutError extends CustomError ``` **Extends:** [CustomError](./puppeteer.customerror.md) ## Remarks Example operations are [page.waitForSelector](./puppeteer.page.waitforselector.md) or [puppeteer.launch](./puppeteer.puppeteernode.launch.md).