c++ - 使用外部库(GEGELATI)时出现问题

Question

最近，我开始学习有关机器学习的知识，并在Visual Studio中下载了与之兼容的库:C++的GEGELATI。链接到库:https://github.com/gegelati/gegelati。我还从同一页面下载了示例“stick-game”。我遵循所有要点来构建库和示例，但是会引发错误:“找不到gegelati.h”。当我看到它时，我记得在项目中构建库时“cmake ..”命令给我的建议:

*CMake Warning at CMakeLists.txt:68 (find_package):
  By not providing "FindGEGELATI.cmake" in CMAKE_MODULE_PATH this project has
  asked CMake to find a package configuration file provided by "GEGELATI",
  but CMake did not find one.

找不到“GEGELATI”提供的软件包配置文件
以下名称之一:

GEGELATIConfig.cmake
gegelati-config.cmake

将安装前缀“GEGELATI”添加到CMAKE_PREFIX_PATH或进行设置
“GEGELATI_DIR”到包含上述文件之一的目录。如果
“GEGELATI”提供了单独的开发包或SDK，请确保它具有
已安装。*

如果您需要知道，这是我的CMakeList.txt中的代码: https://drive.google.com/file/d/1hDkC6coCWaQNb1Cv1QzrJbUMucjYE68y/view?usp=sharing

为了解决该问题，我决定复制gegelati.h和GEGELATIConfig.cmake文件(从安装gegelati的文件夹中)，但是当我再次尝试编译时，出现错误E1696；但是，当我尝试重新编译时，出现了错误。它无法打开gegelati.h。

最后，我尝试将gegelati文件直接放在“stick-game / lib / gegelatilib”文件夹中，
将其路径包含在“AdditionalIncludeDirectories”中。我为此贴了一张图片(抱歉，它是西类牙语的):



新程序输出向我抛出19个“LNK2019”错误和8个“LNK2001”错误。范例二:

Error  LNK2019  símbolo externo "public: unsigned int __thiscall Instructions::Set::getNbInstructions(void)const " (?getNbInstructions@Set@Instructions@@QBEIXZ) sin resolver al que se hace referencia en la función _main

Error   LNK2001 símbolo externo "public: virtual class Learn::LearningEnvironment * __thiscall Learn::LearningEnvironment::clone(void)const " (?clone@LearningEnvironment@Learn@@UBEPAV12@XZ) sin resolver

另外，在一开始，当我安装doxygen以使用gegelati时，它会引发一些错误:

*Checking Build System
  Generating doxygen documentation in C:/Users/Acel Guilts/gegelati/bin/doc
CUSTOMBUILD : warning : tag INPUT: input source 'C:/Users/Acel' does not exist [C:\Users\Acel Guilts\gegelati\bin\doc\d
oc.vcxproj]
CUSTOMBUILD : warning : tag INPUT: input source 'Guilts/gegelati/gegelatilib' does not exist [C:\Users\Acel Guilts\gege
lati\bin\doc\doc.vcxproj]
CUSTOMBUILD : warning : tag INPUT: input source 'C:/Users/Acel' does not exist [C:\Users\Acel Guilts\gegelati\bin\doc\d
oc.vcxproj]
CUSTOMBUILD : warning : tag INPUT: input source 'Guilts/gegelati/doc' does not exist [C:\Users\Acel Guilts\gegelati\bin
\doc\doc.vcxproj]
CUSTOMBUILD : error : source C:/Users/Acel is not a readable file or directory... skipping. [C:\Users\Acel Guilts\gegel
ati\bin\doc\doc.vcxproj]
CUSTOMBUILD : error : source Guilts/gegelati/gegelatilib is not a readable file or directory... skipping. [C:\Users\Ace
l Guilts\gegelati\bin\doc\doc.vcxproj]
CUSTOMBUILD : error : source C:/Users/Acel is not a readable file or directory... skipping. [C:\Users\Acel Guilts\gegel
ati\bin\doc\doc.vcxproj]
CUSTOMBUILD : error : source Guilts/gegelati/doc is not a readable file or directory... skipping. [C:\Users\Acel Guilts
\gegelati\bin\doc\doc.vcxproj]*

您是否有解决问题的想法？

Answer 1

Windows(x64)上最新版本的Microsoft Visual Studio的GEGELATI的安装过程可以通过以下步骤完成:

从 GEGELATI-APPS repository(或使用该库构建的任何其他应用程序)下载您选择的应用程序。

从here下载GEGELATI库的最新二进制文件。确保选择页面底部的gegelatilib-x.y.z.zip。

将gegelatilib-x.y.z.zip的内容解压缩到应用程序的lib文件夹中。例如，对于stick-game应用程序，该文件夹将为stick-game/lib/gegelatilib-0.2.1，并且其中应包含以下子文件夹:bin，CMake，doc，include，lib。

在stick-game/bin文件夹中打开一个终端，只需键入:

  cmake ..

这将产生以下输出:

-- Building for: Visual Studio 16 2019
-- Selecting Windows SDK version 10.0.18362.0 to target Windows 6.1.7601.
-- The C compiler identification is MSVC 19.26.28806.0
-- The CXX compiler identification is MSVC 19.26.28806.0
-- Check for working C compiler: C:/Program Files (x86)/Microsoft Visual Studio/2019/Community/VC/Tools/MSVC/14.26.28801/bin/Hostx64/x64/cl.exe
-- Check for working C compiler: C:/Program Files (x86)/Microsoft Visual Studio/2019/Community/VC/Tools/MSVC/14.26.28801/bin/Hostx64/x64/cl.exe -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: C:/Program Files (x86)/Microsoft Visual Studio/2019/Community/VC/Tools/MSVC/14.26.28801/bin/Hostx64/x64/cl.exe
-- Check for working CXX compiler: C:/Program Files (x86)/Microsoft Visual Studio/2019/Community/VC/Tools/MSVC/14.26.28801/bin/Hostx64/x64/cl.exe -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
Copy GEGELATI DLLs into <YOUR_PATH>/stick-game/bin
-- Configuring done
-- Generating done
-- Build files have been written to: <YOUR_PATH>/stick-game/bin

现在您可以通过打开stick-game/bin/stick-game.sln解决方案来打开项目。要从Visual Studio启动应用程序，请在解决方案资源管理器中右键单击stick-game项目，然后选择“设为启动项目”。

或者

仍在终端中，从bin目录:

cmake --build . --target stick-game --config Release

然后

.\Release\stick-game.exe

最好，
卡罗尔