a question on build environment(solved!)

netlhx

hi, everybody! i'm a newbie, just bought a new ct, trying to build android, following
these instructions:
1. http://docs.cubieboard.org/tutor ... mage_for_cubietruck
2. http://linux-sunxi.org/Android
but i was stuck in preparing the build environment, when doing this:

1. sudo apt-get install git gnupg flex bison gperf build-essential zip curl libc6-dev libncurses5-dev:i386 \
   
2.    x11proto-core-dev libx11-dev:i386 libreadline6-dev:i386 libgl1-mesa-glx:i386 \
   
3.      libgl1-mesa-dev g++-multilib mingw32 tofrodos python-markdown libxml2-utils xsltproc \
   
4.    zlib1g-dev:i386

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error message looks like:

1. Reading package lists... Done
   
2. Building dependency tree      
   
3. Reading state information... Done
   
4. zip is already the newest version.
   
5. zip set to manually installed.
   
6. gnupg is already the newest version.
   
7. 
   
8. 
   
9. libc6-dev is already the newest version.
   
10. Some packages could not be installed. This may mean that you have
    
11. requested an impossible situation or if you are using the unstable
    
12. distribution that some required packages have not yet been created
    
13. or been moved out of Incoming.
    
14. The following information may help to resolve the situation:
    
15. 
    
16. The following packages have unmet dependencies:
    
17. libgl1-mesa-glx:i386 : Depends: libglapi-mesa:i386 (= 8.0.4-0ubuntu0.6)
    
18.                         Recommends: libgl1-mesa-dri:i386 (>= 7.2)
    
19. E: Unable to correct problems, you have held broken packages.
    

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my host system is ubuntu desktop 12.04.2 LTS,  any tips or text are appreciated!



solution:http://docs.cubieboard.org/tutor ... ronment_for_android