ref: 187621ae2427094a48b7ca8c6674cf49fd1b9fd5
dir: /docs/content/en/functions/errorf.md/
--- title: errorf linktitle: errorf description: Evaluates a format string and logs it to ERROR. date: 2017-09-30 publishdate: 2017-09-30 lastmod: 2017-09-30 categories: [functions] menu: docs: parent: "functions" keywords: [strings, log, error] signature: ["errorf FORMAT INPUT"] workson: [] hugoversion: relatedfuncs: [printf] deprecated: false aliases: [] --- `errorf` will evaluate a format string, then output the result to the ERROR log. This will also cause the build to fail. ``` {{ errorf "Something went horribly wrong! %s" err }} ```