FlutterのなぞのAndroidエラー

Running Gradle task 'assembleDebug'...
/Users/shinriyo/.pub-cache/hosted/pub.dartlang.org/permission_handler-8.2.2/android/src/main/java/com/baseflow/permissionhandler/PermissionUtils.java:72: error: cannot find symbol
            case Manifest.permission.BLUETOOTH_SCAN:
                                    ^
  symbol:   variable BLUETOOTH_SCAN
  location: class permission
/Users/shinriyo/.pub-cache/hosted/pub.dartlang.org/permission_handler-8.2.2/android/src/main/java/com/baseflow/permissionhandler/PermissionUtils.java:74: error: cannot find symbol
            case Manifest.permission.BLUETOOTH_ADVERTISE:
                                    ^
  symbol:   variable BLUETOOTH_ADVERTISE
  location: class permission
/Users/shinriyo/.pub-cache/hosted/pub.dartlang.org/permission_handler-8.2.2/android/src/main/java/com/baseflow/permissionhandler/PermissionUtils.java:76: error: cannot find symbol
            case Manifest.permission.BLUETOOTH_CONNECT:
                                    ^
  symbol:   variable BLUETOOTH_CONNECT
  location: class permission
/Users/shinriyo/.pub-cache/hosted/pub.dartlang.org/permission_handler-8.2.2/android/src/main/java/com/baseflow/permissionhandler/PermissionUtils.java:259: error: cannot find symbol
                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S && hasPermissionInManifest(context, permissionNames, Manifest.permission.BLUETOOTH_SCAN ))
                                                                ^
  symbol:   variable S
  location: class VERSION_CODES
/Users/shinriyo/.pub-cache/hosted/pub.dartlang.org/permission_handler-8.2.2/android/src/main/java/com/baseflow/permissionhandler/PermissionUtils.java:259: error: cannot find symbol
                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S && hasPermissionInManifest(context, permissionNames, Manifest.permission.BLUETOOTH_SCAN ))
                                                                                          ^
  symbol:   variable BLUETOOTH_SCAN
  location: class permission
/Users/shinriyo/.pub-cache/hosted/pub.dartlang.org/permission_handler-8.2.2/android/src/main/java/com/baseflow/permissionhandler/PermissionUtils.java:260: error: cannot find symbol
                    permissionNames.add(Manifest.permission.BLUETOOTH_SCAN);
                                                           ^
  symbol:   variable BLUETOOTH_SCAN
  location: class permission
/Users/shinriyo/.pub-cache/hosted/pub.dartlang.org/permission_handler-8.2.2/android/src/main/java/com/baseflow/permissionhandler/PermissionUtils.java:265: error: cannot find symbol
                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S && hasPermissionInManifest(context, permissionNames, Manifest.permission.BLUETOOTH_ADVERTISE ))
                                                                ^
  symbol:   variable S
  location: class VERSION_CODES
/Users/shinriyo/.pub-cache/hosted/pub.dartlang.org/permission_handler-8.2.2/android/src/main/java/com/baseflow/permissionhandler/PermissionUtils.java:265: error: cannot find symbol
                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S && hasPermissionInManifest(context, permissionNames, Manifest.permission.BLUETOOTH_ADVERTISE ))
                                                                                          ^
  symbol:   variable BLUETOOTH_ADVERTISE
  location: class permission
/Users/shinriyo/.pub-cache/hosted/pub.dartlang.org/permission_handler-8.2.2/android/src/main/java/com/baseflow/permissionhandler/PermissionUtils.java:266: error: cannot find symbol
                    permissionNames.add(Manifest.permission.BLUETOOTH_ADVERTISE);
                                                           ^
  symbol:   variable BLUETOOTH_ADVERTISE
  location: class permission
/Users/shinriyo/.pub-cache/hosted/pub.dartlang.org/permission_handler-8.2.2/android/src/main/java/com/baseflow/permissionhandler/PermissionUtils.java:271: error: cannot find symbol
                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S && hasPermissionInManifest(context, permissionNames, Manifest.permission.BLUETOOTH_CONNECT ))
                                                                ^
  symbol:   variable S
  location: class VERSION_CODES
/Users/shinriyo/.pub-cache/hosted/pub.dartlang.org/permission_handler-8.2.2/android/src/main/java/com/baseflow/permissionhandler/PermissionUtils.java:271: error: cannot find symbol
                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S && hasPermissionInManifest(context, permissionNames, Manifest.permission.BLUETOOTH_CONNECT ))
                                                                                          ^
  symbol:   variable BLUETOOTH_CONNECT
  location: class permission
/Users/shinriyo/.pub-cache/hosted/pub.dartlang.org/permission_handler-8.2.2/android/src/main/java/com/baseflow/permissionhandler/PermissionUtils.java:272: error: cannot find symbol
                    permissionNames.add(Manifest.permission.BLUETOOTH_CONNECT);
                                                           ^
  symbol:   variable BLUETOOTH_CONNECT
  location: class permission
12 errors