Linuxdeepin上的add-apt-repository时的错误

chinesedragon

1. linuxdeepin@linuxdeepin-VirtualBox:~/ExternC$ sudo add-apt-repository ppa:webupd8team/sublime-text-2
   
2. You are about to add the following PPA to your system:
   
3. Sublime Text 2 packages - the .deb will automatically download the latest build  from http://www.sublimetext.com/dev or beta from http://www.sublimetext.com/2 (Adobe Flash Player installer - style).
   
4. 
   
5. More info and feedback:
   
6. http://www.webupd8.org/2011/03/sublime-text-2-ubuntu-ppa.html
   
7. http://www.webupd8.org/2012/03/sublime-text-2-ppa-separate-development.html
   
8. More info: https://launchpad.net/~webupd8team/+archive/sublime-text-2
   
9. Press [ENTER] to continue or ctrl-c to cancel adding it
   
10. 
    
11. Traceback (most recent call last):
    
12.   File "/usr/bin/add-apt-repository", line 160, in <module>
    
13.     sp = SoftwareProperties(options=options)
    
14.   File "/usr/lib/python2.7/dist-packages/softwareproperties/SoftwareProperties.py", line 96, in __init__
    
15.     self.reload_sourceslist()
    
16.   File "/usr/lib/python2.7/dist-packages/softwareproperties/SoftwareProperties.py", line 584, in reload_sourceslist
    
17.     self.distro.get_sources(self.sourceslist)   
    
18.   File "/usr/lib/python2.7/dist-packages/aptsources/distro.py", line 87, in get_sources
    
19.     raise NoDistroTemplateException("Error: could not find a "
    
20. aptsources.distro.NoDistroTemplateException: Error: could not find a distribution template
    
21. linuxdeepin@linuxdeepin-VirtualBox:~/ExternC$

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请问是怎么回事？怎么解决呢？