ubuntu卸载pangolin库

╰+哭是因爲堅強的太久メ 2023-10-02 20:28 11阅读 0赞

Pangolin库是在SLAM学习中常用的库之一，因为我在编译ORB-SLAM2过程中，一直报下面这样的错：

Build type: Release
    -- Using flag -std=c++11.
    -- Using opencv version 3.4.5
    CMake Error at CMakeLists.txt:48 (find_package):
      Found package configuration file:
    
        /usr/local/lib/cmake/Pangolin/PangolinConfig.cmake
    
      but it set Pangolin_FOUND to FALSE so package "Pangolin" is considered to
      be NOT FOUND.  Reason given by package:
    
      Pangolin could not be found because dependency Eigen3 could not be found.
    
    
    
    -- Configuring incomplete, errors occurred!
    See also "/home/dzh/slambook/EAO-SLAM/build/CMakeFiles/CMakeOutput.log".
    See also "/home/dzh/slambook/EAO-SLAM/build/CMakeFiles/CMakeError.log".

上网查询十几个链接后，发现不是Eigen3的问题，而是Pangolin版本的问题，所以需要卸载重装。因为pangolin是通过源代码安装的，**所以下面步骤适用于所有源代码安装的库的卸载**！

## 一、删除库和头文件 ##

cd Pangolin/build
    make clean
    sudo make uninstall

执行之后就会开始卸载所有的.so文件和.h文件。

## 二、删除源代码 ##

cd ../..
    sudo rm -r Pangolin

执行之后删除源代码文件夹。

## 三、删除残留文件夹 ##

更新下索引，搜索pangolin的位置

sudo updatedb
    locate pangolin

可以看到在/usr/local/include/pangolin目录还未删除，因为第一步是卸载了该目录下的所有.h文件。

/usr/local/include/pangolin
    /usr/local/include/pangolin/compat
    /usr/local/include/pangolin/console
    /usr/local/include/pangolin/display
    /usr/local/include/pangolin/factory
    /usr/local/include/pangolin/geometry
    /usr/local/include/pangolin/gl
    /usr/local/include/pangolin/handler
    /usr/local/include/pangolin/image
    /usr/local/include/pangolin/log

所以，我们将该目录删除即可。

sudo rm -r /usr/local/include/pangolin

## 四、检验卸载 ##

再次搜索pangolin的位置

locate pangolin

发现只有在Trash中才能找到，卸载成功！

/home/dzh/.local/share/Trash/expunged/2600043745/build/include/pangolin
    /home/dzh/.local/share/Trash/expunged/2600043745/build/include/pangolin/factory
    /home/dzh/.local/share/Trash/expunged/2600043745/build/include/pangolin/factory/RegisterFactoriesVideoInterface.h
    /home/dzh/.local/share/Trash/expunged/2600043745/build/include/pangolin/factory/RegisterFactoriesVideoOutputInterface.h
    /home/dzh/.local/share/Trash/expunged/2600043745/build/include/pangolin/factory/RegisterFactoriesWindowInterface.h

## 五、重新安装 ##

先到[ stevenlovegrove /Pangolin ][stevenlovegrove _Pangolin]选择ORB-SLAM2对应的0.5版本，然后下载到本地。

然后跟随安装教程，包含编译错误解决：[ubuntu18.04安装pangolin库，图文详解][ubuntu18.04_pangolin]

[stevenlovegrove _Pangolin]: https://github.com/stevenlovegrove/Pangolin/tags
[ubuntu18.04_pangolin]: https://blog.csdn.net/qq_42257666/article/details/125473414