The function 'InputDecorationTheme' isn't defined. Try importing the library that defines 'InputDecorationTheme', correcting the name to the name of an existing function, or defining a function named 'InputDecorationTheme'
inputDecorationTheme: InputDecorationTheme ( contentPadding: EdgeInsets.all( AppPadding.p8, ), hintStyle: getReglarStyle( color: ColorManager.grey, fontSize: FontSize.s14, ), labelStyle: getReglarStyle( color: ColorManager.grey, fontSize: FontSize.s14, ), errorStyle: getReglarStyle( color: ColorManager.error, ), enabledBorder: OutlineInputBorder( borderSide: BorderSide( color: ColorManager.grey, width: AppSize.s1_5, ), borderRadius: BorderRadius.circular(AppSize.s8), ), focusedBorder: OutlineInputBorder( borderSide: BorderSide( color: ColorManager.primary, width: AppSize.s1_5, ), borderRadius: BorderRadius.circular(AppSize.s8), ), errorBorder: OutlineInputBorder( borderSide: BorderSide( color: ColorManager.primary, width: AppSize.s14, ), borderRadius: BorderRadius.circular(AppSize.s8), ), ) ); }