http://maketecheasier.com/install-custom-gnome-shell-themes/2011/09/27

裝好gnome3後，照著這篇要安裝shell-extensions-user-theme

可是輸入 sudo apt-get install shell-extensions-user-theme後出現



正在讀取套件清單... 完成
正在重建相依關係
正在讀取狀態資料... 完成
有些套件無法安裝。這可能意謂著您的要求難以解決，或是若您使用的是
unstable 發行版，可能有些必要的套件尚未建立，或是被移出 Incoming 了。
以下的資訊或許有助於解決當前的情況：

下列的套件有未滿足的相依關係：
gnome-shell-extensions-user-theme : 相依關係: gnome-shell-extensions-common 但它卻將不會被安裝
E: 無法修正問題，您保留 (hold) 了損毀的套件

sudo add-apt-repository ppa:ricotz/testing
sudo apt-get update
sudo apt-get upgrade # 增加這一行
sudo apt-get install gnome-tweak-tool gnome-shell-extensions-user-theme

增加那一行後還是一樣的錯誤訊息＠＠

搜尋/複製 紅字後面的 網址
Mirror location information : 例如 http://tw.archive.canonical.com/ubuntu/
搜尋/取代
將
Mirror location information
選全部取代爲 (一次完成)
Mirror location information （從 下面 3. 紅字 Mirror location information 後面的 網址 / 複製）
儲存

這一段看不懂＠＠

sudo cat /etc/apt/sources.list
把它　直接　copy 貼上來

插花一下
我在Debian上面是自行編譯安裝gnome-shell-extensions-user-theme
需要的人可以參考這篇
我只有把3.0.2改成3.2.2(請自行查看gnome-shell版本)
然後第4步我沒做

# deb cdrom:[Ubuntu 12.04 LTS _Precise Pangolin_ - Release i386 (20120423)]/ precise main restricted

# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://archive.ubuntu.com/ubuntu precise main restricted
deb-src http://archive.ubuntu.com/ubuntu precise main restricted

## Major bug fix updates produced after the final release of the
## distribution.
deb http://archive.ubuntu.com/ubuntu precise-updates main restricted
deb-src http://archive.ubuntu.com/ubuntu precise-updates main restricted

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb http://archive.ubuntu.com/ubuntu precise universe
deb-src http://archive.ubuntu.com/ubuntu precise universe
deb http://archive.ubuntu.com/ubuntu precise-updates universe
deb-src http://archive.ubuntu.com/ubuntu precise-updates universe

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://archive.ubuntu.com/ubuntu precise multiverse
deb-src http://archive.ubuntu.com/ubuntu precise multiverse
deb http://archive.ubuntu.com/ubuntu precise-updates multiverse
deb-src http://archive.ubuntu.com/ubuntu precise-updates multiverse

## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
deb http://archive.ubuntu.com/ubuntu precise-backports main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu precise-backports main restricted universe multiverse

deb http://archive.ubuntu.com/ubuntu precise-security main restricted
deb-src http://archive.ubuntu.com/ubuntu precise-security main restricted
deb http://archive.ubuntu.com/ubuntu precise-security universe
deb-src http://archive.ubuntu.com/ubuntu precise-security universe
deb http://archive.ubuntu.com/ubuntu precise-security multiverse
deb-src http://archive.ubuntu.com/ubuntu precise-security multiverse

## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.
# deb http://archive.canonical.com/ubuntu precise partner
# deb-src http://archive.canonical.com/ubuntu precise partner

## This software is not part of Ubuntu, but is offered by third-party
## developers who want to ship their latest software.
deb http://extras.ubuntu.com/ubuntu precise main
deb-src http://extras.ubuntu.com/ubuntu precise main

sudo gedit /etc/apt/sources.list
搜尋／取代
搜尋(S): http://archive.ubuntu.com/ubuntu
取代(W): http://free.nchc.org.tw/ubuntu/
按　全部取代（A）
得到的結果　與虛線內的內容比對一下
......................................................................
# deb cdrom:[Ubuntu 12.04 LTS _Precise Pangolin_ - Release i386 (20120423)]/ precise main restricted

# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://free.nchc.org.tw/ubuntu/ precise main restricted
deb-src http://free.nchc.org.tw/ubuntu/ precise main restricted

## Major bug fix updates produced after the final release of the
## distribution.
deb http://free.nchc.org.tw/ubuntu/ precise-updates main restricted
deb-src http://free.nchc.org.tw/ubuntu/ precise-updates main restricted

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb http://free.nchc.org.tw/ubuntu/ precise universe
deb-src http://free.nchc.org.tw/ubuntu/ precise universe
deb http://free.nchc.org.tw/ubuntu/ precise-updates universe
deb-src http://free.nchc.org.tw/ubuntu/ precise-updates universe

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://free.nchc.org.tw/ubuntu/ precise multiverse
deb-src http://free.nchc.org.tw/ubuntu/ precise multiverse
deb http://free.nchc.org.tw/ubuntu/ precise-updates multiverse
deb-src http://free.nchc.org.tw/ubuntu/ precise-updates multiverse

## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
deb http://free.nchc.org.tw/ubuntu/ precise-backports main restricted universe multiverse
deb-src http://free.nchc.org.tw/ubuntu/ precise-backports main restricted universe multiverse

deb http://free.nchc.org.tw/ubuntu/ precise-security main restricted
deb-src http://free.nchc.org.tw/ubuntu/ precise-security main restricted
deb http://free.nchc.org.tw/ubuntu/ precise-security universe
deb-src http://free.nchc.org.tw/ubuntu/ precise-security universe
deb http://free.nchc.org.tw/ubuntu/ precise-security multiverse
deb-src http://free.nchc.org.tw/ubuntu/ precise-security multiverse

## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.
# deb http://archive.canonical.com/ubuntu precise partner
# deb-src http://archive.canonical.com/ubuntu precise partner

## This software is not part of Ubuntu, but is offered by third-party
## developers who want to ship their latest software.
deb http://extras.ubuntu.com/ubuntu precise main
deb-src http://extras.ubuntu.com/ubuntu precise main
......................................................................
如果正確　就儲存　然後
sudo apt-get update # 更新可以安裝的套件來源明細表
sudo apt-get upgrade　＃　更新你的電腦內已安裝套件到最新版本
sudo apt-get -f install
sudo dpkg --configure -a
sudo apt-get autoremove
sudo apt-get clean
sudo apt-get install gnome-tweak-tool gnome-shell-extensions-user-theme
如果還有錯誤訊息　把整個錯誤訊息　copy 貼上來