Unity Subscribe Ros Custom Msg Issue

Unity Engine
1

I try to create one custom ros message and building it into unity. When I try to subscribe this topic get data but unity gives me this error：

But at other project with same setting it works well, how can i solve this problem?

Here is my msg files:

cmake_minimum_required(VERSION 3.10.2)
project(ros_msg)

## specify the output directory for generated header file
# set(MESSAGE_GEN_INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/include)

# file(GLOB MESSAGE_FILES "msg/*.msg")

find_package(catkin REQUIRED COMPONENTS
  roscpp
  rospy
  std_msgs
  message_generation
)

## add msg files here in case of new msgs are created.
add_message_files(
    FILES
    TooltipCoords.msg
    TipCoords.msg
)

generate_messages(
   DEPENDENCIES
   std_msgs
)

catkin_package(
   CATKIN_DEPENDS roscpp rospy std_msgs message_runtime
)

include_directories(${catkin_INCLUDE_DIRS})

<?xml version="1.0"?>
<package format="2">
  <name>ros_msg</name>
  <version>0.0.0</version>
  <description>The my_custom_msgs package</description>

  <buildtool_depend>catkin</buildtool_depend>
  <build_depend>roscpp</build_depend>
  <build_depend>rospy</build_depend>
  <build_depend>std_msgs</build_depend>
  <build_depend>message_generation</build_depend>
  <build_export_depend>roscpp</build_export_depend>
  <build_export_depend>rospy</build_export_depend>
  <build_export_depend>std_msgs</build_export_depend>
  <exec_depend>roscpp</exec_depend>
  <exec_depend>rospy</exec_depend>
  <exec_depend>std_msgs</exec_depend>
  <exec_depend>message_runtime</exec_depend>
</package>

 public class TooltipCoordsMsg : Message
    {
        public const string k_RosMessageName = "ros_msg/TooltipCoords";
        public override string RosMessageName => k_RosMessageName;