Unable to run app in Simulator An error was encountered while running (Domain = FBSOpenApplicationErrorDomain, Code = 4) iOSシミュレータの下記メニューからコンテンツをリセットする。 [iOS Simulator]-[Rest Contents and Settings...]-[Reset] それでもダメな場合は、OS自体を再起動する。 Register as a new user and use Qiita more conveniently You get articles that match your needsYou can efficiently read back useful informationYou can use dark themeWhat