Symbolic link for Sunrise Project doesn't work

[RLi43]

Following the instruction in [Hardware Setup] -> [Install Applications to the Robot] -> [Install the LBRServer application] -> "create a symbolic link to LBRServer.java", I find that the command provided doesn't provide a stable link to the file on my laptop -- the file is empty or turns empty after a while. I didn't investigate the cause but I found a stable solution using the Sunrise Workbench software directly as following:

1. Right-click the package lbr_fri_ros2, [New] -> [File]
2. In the new dialogue window, click "Advanced >>" button below
3. Check "Link to file in the system"
4. "Browse..." and select LBRServer.java.
5. "Finish"