pcd_viewer not run [closed]

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Hi When i try to see a pcd file in ROS electric with rosrun pcl pcd_viewer <filename>, I find this:

rosrun pcl pcd_viewer milk.pcd

[rospack] warning: trailing slash found in ROS_PACKAGE_PATH

[rospack] warning: trailing slash found in ROS_PACKAGE_PATH

[rospack] warning: trailing slash found in ROS_PACKAGE_PATH

The viewer window provides interactive commands; for help, press 'h' or 'H' from within the window. > Loading milk.pcd Error del bus

I don't know how to solve this.

Thanks</filename>