Ubuntu 16.04安装搜狗拼音输入法错误问题的解决方法

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一、环境介绍

Ubuntu 16.04

搜狗输入法： sogoupinyin_2.0.0.0078_amd64

二、问题表现

sudo dpkg -i sogoupinyin_2.0.0.0078_amd64.deb

错误信息如下：

sogoupinyin : Depends: libopencc2 but it is not installable or 
libopencc1 but it is not going to be installed 
Depends: fcitx-libs (>= 4.2.7) but it is not going to be installed 
Depends: fcitx-libs-qt (>= 4.2.7) but it is not going to be installed 
Recommends: fonts-droid-fallback but it is not going to be installed or 
fonts-droid but it is not installable 
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).

一看就知道是依赖包存在问题

三、问题分析

之前在Ubuntu 15.10的版本之时，使用同样的sogou版本，不存在此类的问题。但是在Ubuntu 16.04中，却存在此类问题，说明Ubuntu升级之后，sogou输入法并未做相应的系统兼容性测试，故起最高的Ubuntu支持版本时15.10.

虽然我们知道了问题，但是该如何解决呢？

基于错误信息，我们发现起依赖包有以下几个： libopencc1 libopencc2, fcitx-libs, fcitx-libs-qt font-droid-fallback.

四、试错分析

试错1：

bladestone@bladestone-laptop:~$ sudo apt install fcitx-libs 
Reading package lists... Done 
Building dependency tree     
Reading state information... Done 
You might want to run 'apt-get -f install' to correct these: 
The following packages have unmet dependencies: 
 sogoupinyin : Depends: libopencc2 but it is not installable or 
            libopencc1 but it is not going to be installed 
        Depends: fcitx-libs-qt (>= 4.2.7) but it is not going to be installed 
        Recommends: fonts-droid-fallback but it is not going to be installed or 
              fonts-droid but it is not installable 
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).

试错2：

bladestone@bladestone-laptop:~$ sudo apt install fcitx-libs-qt 
Reading package lists... Done 
Building dependency tree     
Reading state information... Done 
You might want to run 'apt-get -f install' to correct these: 
The following packages have unmet dependencies: 
 sogoupinyin : Depends: libopencc2 but it is not installable or 
            libopencc1 but it is not going to be installed 
        Depends: fcitx-libs (>= 4.2.7) but it is not going to be installed 
        Recommends: fonts-droid-fallback but it is not going to be installed or 
              fonts-droid but it is not installable 
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).

试错3：

bladestone@bladestone-laptop:~$ sudo apt install fcitx-libs-qt fcitx-libs 
Reading package lists... Done 
Building dependency tree     
Reading state information... Done 
You might want to run 'apt-get -f install' to correct these: 
The following packages have unmet dependencies: 
 sogoupinyin : Depends: libopencc2 but it is not installable or 
            libopencc1 but it is not going to be installed 
        Recommends: fonts-droid-fallback but it is not going to be installed or 
              fonts-droid but it is not installable 
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).

试错4：

bladestone@bladestone-laptop:~$ sudo apt install fonts-droid-fallback 
Reading package lists... Done 
Building dependency tree     
Reading state information... Done 
You might want to run 'apt-get -f install' to correct these: 
The following packages have unmet dependencies: 
 sogoupinyin : Depends: libopencc2 but it is not installable or 
            libopencc1 but it is not going to be installed 
        Depends: fcitx-libs (>= 4.2.7) but it is not going to be installed 
        Depends: fcitx-libs-qt (>= 4.2.7) but it is not going to be installed 
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).

试错5：

bladestone@bladestone-laptop:~$ sudo apt install libopencc1 
Reading package lists... Done 
Building dependency tree     
Reading state information... Done 
You might want to run 'apt-get -f install' to correct these: 
The following packages have unmet dependencies: 
 sogoupinyin : Depends: fcitx-libs (>= 4.2.7) but it is not going to be installed 
        Depends: fcitx-libs-qt (>= 4.2.7) but it is not going to be installed 
        Recommends: fonts-droid-fallback but it is not going to be installed or 
              fonts-droid but it is not installable 
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).

分析： 经过各种尝试，发现依然无法正常解决问题，类库包之间的依赖关系还是非常复杂的。

五、问题解决

5.1 移除sogou输入法，由于其安装不完整

sudo apt remove sogoupinyin

执行过程：

Reading package lists... Done 
Building dependency tree     
Reading state information... Done 
The following packages will be REMOVED: 
 sogoupinyin 
0 upgraded, 0 newly installed, 1 to remove and 43 not upgraded. 
1 not fully installed or removed. 
After this operation, 42.6 MB disk space will be freed. 
Do you want to continue"htmlcode">

sudo apt install libopencc1 fcitx-libs fcitx-libs-qt fonts-droid-fallback 


5.3 重新安装sogou输入法


sudo dpkg -i sogoupinyin_2.0.0.0078_amd64.deb


结果 一切顺利，没有报类似的错误信息
总结
安装依赖需要一次安装完成，切勿单个安装，主要是由于包之间彼此会有一定的依赖关系，这个是你无法准确定位的，故在 一次安装动作中做完。
另外需要注意的是： sogou输入法的Linux版本目前只兼容到Ubunut 15.10， 请大家彼此周知该情况。