安装sg162时。总是出现
package name:  sg162.pkg
        from:  http://www.stata.com/stb/stb60/

checking sg162 consistency and verifying not already installed...
connection timed out -- see help r(2) for troubleshooting
could not copy http://www.stata.com/stb/stb60/sg162/spatdiag.ado
(no action taken)

请问这是什么原因造成的，我的stata版本是15.1中文版，是版本的原因吗