PCL Header to Sensor_msg convertion problem

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Guys,

I have this code snippet (I wrote it):

#include "depth_image_proc.h"
#include <ros/ros.h>
#include <image_transport/image_transport.h>
#include <pcl_ros/point_cloud.h>
#include <pcl/point_types.h>
#include <sensor_msgs/image_encodings.h>
#include <image_geometry/pinhole_camera_model.h>
#include <sensor_msgs/PointCloud2.h>

generatePCL::generatePCL(const sensor_msgs::ImageConstPtr& depth_msg,          
        const sensor_msgs::CameraInfoConstPtr& info_m)                         
{
    cloud_msg.header = depth_msg->header;                                      
    cloud_msg.height = depth_msg->height;                                      
    cloud_msg.width  = depth_msg->width;                                       
    cloud_msg.is_dense = false;
    cloud_msg.points.resize(cloud_msg.height * cloud_msg.width);                                                 
    convert(depth_msg);
}

Where cloud_msg is defined as:

pcl::PointCloud<pcl::PointXYZ> cloud_msg;

But after I run the code I get this error:

depth_image_proc.cpp: In constructor ‘generatePCL::generatePCL(const ImageConstPtr&, const CameraInfoConstPtr&)’:
depth_image_proc.cpp:16:19: error: no match for ‘operator=’ (operand types are ‘pcl::PCLHeader’ and ‘const _header_type {aka const std_msgs::Header_<std::allocator<void> >}’)
  cloud_msg.header = depth_msg->header;
                   ^

Is there a library I am missing? Or a new format? This code was running in Fuerte, and now I am trying to make it run in Indigo.