"BottomSheetController" not found.

[blacknight9]

i have an error only when i use my Android device, on IOS emulator i don't get this error

when I open the page that has this widget the app freezes.

"BottomSheetController" not found. You need to call "Get.put(BottomSheetController())" or "Get.lazyPut(()=>BottomSheetController())"

When the exception was thrown, this was the stack: 
#0      GetInstance.find (package:get/get_instance/src/get_instance.dart:305:7)
#1      Inst.find (package:get/get_instance/src/extension_instance.dart:69:45)
#2      BottomSheetScaffold.build.<anonymous closure> (package:bottom_sheet_scaffold/views/bottom_sheet_scaffold.dart:109:21)
#3      RenderPointerListener.handleEvent (package:flutter/src/rendering/proxy_box.dart:3084:29)
#4      GestureBinding.dispatchEvent (package:flutter/src/gestures/binding.dart:468:22)
#5      RendererBinding.dispatchEvent (package:flutter/src/rendering/binding.dart:333:11)
#6      GestureBinding._handlePointerEventImmediately (package:flutter/src/gestures/binding.dart:413:7)
#7      GestureBinding.handlePointerEvent (package:flutter/src/gestures/binding.dart:376:5)
#8      GestureBinding._flushPointerEventQueue (package:flutter/src/gestures/binding.dart:323:7)
#9      GestureBinding._handlePointerDataPacket (package:flutter/src/gestures/binding.dart:292:9)
#10     _invoke1 (dart:ui/hooks.dart:186:13)
#11     PlatformDispatcher._dispatchPointerDataPacket (dart:ui/platform_dispatcher.dart:424:7)
#12     _dispatchPointerDataPacket (dart:ui/hooks.dart:119:31)
Event: PointerDownEvent#e2f70(position: Offset(376.9, 263.6))
  position: Offset(376.9, 263.6)
Target: RenderPointerListener#99e0d relayoutBoundary=up1
  needs compositing
  parentData: offset=Offset(0.0, 82.7); id=_ScaffoldSlot.body (can use size)
  constraints: BoxConstraints(0.0<=w<=384.0, 0.0<=h<=740.8)
  size: Size(384.0, 740.8)
  behavior: deferToChild
  listeners: down, up