Windows安装 cityflow

论文：

1. Vehicle MTMC dataset – CityFlow: A City-Scale Benchmarkfor Multi-Target Multi-Camera Vehicle Tracking and Re-Identification

[1912.08855v1] Simulating Content Consistent Vehicle Datasets with Attribute Descent

1. Synthetic 3D vehicle dataset – Simulating content consistent vehicle datasets with attribute descent

[2004.14619] The 4th AI City Challenge

Cityflow安装

Linux(Windows用户建议在Windows Subsystem For Linux（WSL）下运行CityFlow或使用docker)指导网址： Welcome to CityFlow’s documentation! — CityFlow 0.1 documentation

windows安装(annaconda+tensorflow)：

不用自己下载GitHub上代码（可先装cmake，后面因未装报错了）

1. Activate tensorflow（进入环境）；
2. Conda install git（若无git);
3. git clone https://github.com/cityflow-project/CityFlow  (下载cityflow);
4. Pip install . ;

没有装cmake报错：

pip install cmake;

继续安装cityflow报错：

查错误：Error: does not support platform specification ... when using setup.py. (Compiles with CUDA otherwise) · Issue #1333 · davisking/dlib · GitHub

下载Visual Studio 教程：【教程】Visual Studio2019安装教程 - 木子欢儿 - 博客园

其中要选择（若是没有选，进入卸载程序中修改）

继续pip install . 安装成功

备注 VS 2022 CMake4.0 后会报错 

Building for: Visual Studio 17 2022 CMake Error at CMakeLists.txt:1 (cmake_minimum_required): Compatibility with CMake < 3.5 has been removed from CMake.

需要修改

修复 CMakeLists.txt 兼容性问题

修改项目中的 CMake 最低版本要求：

1. 修改项目根目录的 CMakeLists.txt（E:\LLL\S2R\UGAT-main\CityFlow-master\CityFlow\CMakeLists.txt）：

   cmake

   # 将第一行改为
   cmake_minimum_required(VERSION 3.5)
   

2. 修改 pybind11 的 CMakeLists.txt（E:\LLL\S2R\UGAT-main\CityFlow-master\CityFlow\extern\pybind11\CMakeLists.txt）：

   cmake

   # 将第8行改为
   cmake_minimum_required(VERSION 3.5)
   

3. 修改 pybind11 工具文件（E:\LLL\S2R\UGAT-main\CityFlow-master\CityFlow\extern\pybind11\tools\pybind11Tools.cmake）：

   cmake

   # 将第8行改为
   cmake_minimum_required(VERSION 3.5)
   

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在ubuntu重装时发现 继续报camke 版本的错误

修改 CityFlow/extern/pybind11/tools/pybind11Tools.cmake文件的第八行 

cmake_minimum_required(VERSION 3.5.0)

继续报错：

import cityflow ImportError: ..../bin/../lib/libstdc++.so.6: version GLIBCXX_3.4.32' not found (required by ...site-packages/cityflow.cpython-39-x86_64-linux-gnu.so)

原因：libstdc++的版本问题，

解决：

1. 查看libstdc++版本：strings /usr/lib/x86_64-linux-gnu/libstdc++.so.6 | grep GLIBCXX 

有 3.4.32，说明是conda 环境中libstdc++ 版本问题

3. 激活环境后，conda install -c conda-forge libstdcxx-ng