Title: Bug Fix: Fix warning thrown by blogpublic-notice.php when VIP_GO_APP_ENVIRONMENT isn’t defined Author: WordPress VIP Documentation Published: February 23, 2021 Last modified: August 5, 2025 --- 1. [Changelog](https://docs.wpvip.com/changelog/) 2. [VIP MU plugins [Production]](https://docs.wpvip.com/changelog/vip-mu-plugins-production/) 3. Bug Fix: Fix warning thrown by blogpublic-notice.php when VIP_GO_APP_ENVIRONMENT isn’t defined # Bug Fix: Fix warning thrown by blogpublic-notice.php when VIP_GO_APP_ENVIRONMENT isn’t defined --- 23 February 2021 16:58:33 GMT+0000 [ VIP MU plugins [Production] ](https://docs.wpvip.com/changelog/vip-mu-plugins-production/) [ Permalink ](https://docs.wpvip.com/changelog/vip-mu-plugins-production/bug-fix-fix-warning-thrown-by-blogpublic-notice-php-when-vip_go_app_environment-isnt-defined/) We wrapped the usage of VIP_GO_APP_ENVIRONMENT in a defined check so it won’t throw warnings anymore. [https://github.com/Automattic/vip-go-mu-plugins/pull/1996](https://github.com/Automattic/vip-go-mu-plugins/pull/1996)