我先是通过编译安装了openfetion，也安装了依赖库，使用的时候常常崩溃掉，一怒之下将其卸载。之前不知道从ppa源可以安装。
添加了ppa源后运行sudo apt-get install openfetion的时候又出现错误，无法安装，报错：
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following NEW packages will be installed:
openfetion
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
1 not fully installed or removed.
Need to get 0B/341kB of archives.
After this operation, 1,434kB of additional disk space will be used.
Setting up install-info (4.13a.dfsg.1-5ubuntu1) ...
/etc/environment: line 1: PATH＝:/usr/lib/jvm/java/jdk1.6.0_22/bin: No such file or directory
dpkg: error processing install-info (--configure):
subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
install-info
E: Sub-process /usr/bin/dpkg returned an error code (1)
看到好像是jdk的PATH有问题，jdk是我手动安装的，但我eclipse和netbeans都运行的很好，不知道这个奇怪的问题究竟出在什么地方。
然后下载了libfetion的deb包linux-fetion_1.2.0-0ubuntu1~ppa1_i386.deb，安装的时候软件中心也报错了，报错信息如下：
installArchives() failed: Setting up install-info (4.13a.dfsg.1-5ubuntu1) ...

/etc/environment: line 1: PATH＝/usr/lib/jvm/java/jdk1.6.0_22/bin: No such file or directory

dpkg: error processing install-info (--configure):

subprocess installed post-installation script returned error exit status 1

No apport report written because MaxReports is reached already
Errors were encountered while processing:

install-info

Setting up install-info (4.13a.dfsg.1-5ubuntu1) ...

/etc/environment: line 1: PATH＝/usr/lib/jvm/java/jdk1.6.0_22/bin: No such file or directory

dpkg: error processing install-info (--configure):

subprocess installed post-installation script returned error exit status 1

真的是无奈了。求高人帮手搞定这个问题。在线等！

肯定是手动装的jdk和apt装的jdk冲突了

我没有用apt安装JDK呀，只是手动安装的JDK，而且我也把默认使用的openJDK换成现在手动安装的JDK了，但我觉得openfetion应该没有用到java的东西。
0 /usr/lib/jvm/java-6-openjdk/jre/bin/java 1061 auto mode
1 /usr/lib/jvm/java-6-openjdk/jre/bin/java 1061 manual mode
* 2 /usr/lib/jvm/java/jdk1.6.0_22/bin/java 300 manual mode
3 /usr/lib/jvm/java/jdk1.6.0_22/bin/javac 300 manual mode

楼上的美女，你的环境变量错了，要不要我上门服务啊？

具体应该怎么写呀，我的environment的内容如下：

PATH＝"/usr/lib/jvm/java/jdk1.6.0_22/bin"
CLASSPATH=".:/usr/lib/jvm/java/jdk1.6.0_22/lib"
JAVA_HOME="/usr/lib/jvm/java/jdk1.6.0_22"

如有错误请帮忙指正。
刚刚发现Ubuntu software center中有一项
open source implemention of fetion library(libofetion0)
这个应该就是卸载后残留的库文件吧，但是删也删不掉。

没人知道怎么搞定这个问题吗？

呃，设置的path。。。。

PATH 设置时要这这样写的
PATH=$PATH:/usr/lib/jvm/java/jdk1.6.0_22/bin

经过修改后是这样的：
export JAVA_HOME=/usr/lib/jvm/java/jdk1.6.0_22
export PATH＝$JAVA_HOME/bin:$PATH
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar

这样是不是正确了？
但是还是无法安装和卸载那个该死的openfetion

installArchives() failed: Setting up install-info (4.13a.dfsg.1-5ubuntu1) ...

/etc/environment: line 2: export: `PATH＝/usr/lib/jvm/java/jdk1.6.0_22/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin': not a valid identifier

dpkg: error processing install-info (--configure):

subprocess installed post-installation script returned error exit status 1

Errors were encountered while processing:

install-info

Setting up install-info (4.13a.dfsg.1-5ubuntu1) ...

/etc/environment: line 2: export: `PATH＝/usr/lib/jvm/java/jdk1.6.0_22/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin': not a valid identifier

dpkg: error processing install-info (--configure):

subprocess installed post-installation script returned error exit status 1



问题依旧，依然提示环境变量不是有效的标识符。

你别自己改呗，复制粘贴 7L 的 PATH

请清空这个文件试试。

解决了。应该不是环境变量的问题，有时候ubuntu经常出些莫名其妙的问题。见怪不怪了 =A=
沉吧，沉吧！