OpenSprinkler › Forums › OpenSprinkler Unified Firmware › OpenSprinkler unified firmware compilation error › Reply To: OpenSprinkler unified firmware compilation error May 30, 2018 at 3:03 pm #50312 RayKeymaster @rblond: please clear your browser history, or use a private browsing window, to force the browser to use up-to-date UI files; or update your mobile app if you use mobile app. The current app version is 1.7.7.