复现论文报错解决

文章目录

一、 The detected CUDA version (12.9) mismatches the version that was used to compile PyTorch (11.8)
二、error -- unsupported GNU version! gcc versions later than 11 are not supported!
三、Unknown encoder 'libx264'
四、下载速度太慢、无法递归下载项目

一、 The detected CUDA version (12.9) mismatches the version that was used to compile PyTorch (11.8)

在运行pip install -e gaussian-splatting/submodules/diff-gaussian-rasterization/ 的时候报错
报错内容（部分）：

RuntimeError:
The detected CUDA version (12.9) mismatches the version that was used to compile PyTorch (11.8). 
Please make sure to use the same CUDA versions.

报错内容（全部）：

pip install -e gaussian-splatting/submodules/diff-gaussian-rasterization/
Obtaining file:///mnt/disk2/zijie.zheng/projects/github/PhysGaussian/gaussian-splatting/submodules/diff-gaussian-rasterizationPreparing metadata (setup.py) ... done
Installing collected packages: diff-gaussian-rasterizationDEPRECATION: Legacy editable install of diff-gaussian-rasterization==0.0.0 from file:///mnt/disk2/zijie.zheng/projects/github/PhysGaussian/gaussian-splatting/submodules/diff-gaussian-rasterization (setup.py develop) is deprecated. pip 25.3 will enforce this behaviour change. A possible replacement is to add a pyproject.toml or enable --use-pep517, and use setuptools >= 64. If the resulting installation is not behaving as expected, try using --config-settings editable_mode=compat. Please consult the setuptools documentation for more information. Discussion can be found at https://github.com/pypa/pip/issues/11457Running setup.py develop for diff-gaussian-rasterizationerror: subprocess-exited-with-error× python setup.py develop did not run successfully.│ exit code: 1╰─> [76 lines of output]running develop/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/setuptools/command/develop.py:40: EasyInstallDeprecationWarning: easy_install command is deprecated.!!********************************************************************************Please avoid running ``setup.py`` and ``easy_install``.Instead, use pypa/build, pypa/installer or otherstandards-based tools.See https://github.com/pypa/setuptools/issues/917 for details.********************************************************************************!!easy_install.initialize_options(self)/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/setuptools/_distutils/cmd.py:66: SetuptoolsDeprecationWarning: setup.py install is deprecated.!!********************************************************************************Please avoid running ``setup.py`` directly.Instead, use pypa/build, pypa/installer or otherstandards-based tools.See https://blog.ganssle.io/articles/2021/10/setup-py-deprecated.html for details.********************************************************************************!!self.initialize_options()running egg_infowriting diff_gaussian_rasterization.egg-info/PKG-INFOwriting dependency_links to diff_gaussian_rasterization.egg-info/dependency_links.txtwriting top-level names to diff_gaussian_rasterization.egg-info/top_level.txt/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/torch/utils/cpp_extension.py:476: UserWarning: Attempted to use ninja as the BuildExtension backend but we could not find ninja.. Falling back to using the slow distutils backend.warnings.warn(msg.format('we could not find ninja.'))reading manifest file 'diff_gaussian_rasterization.egg-info/SOURCES.txt'adding license file 'LICENSE.md'writing manifest file 'diff_gaussian_rasterization.egg-info/SOURCES.txt'running build_extTraceback (most recent call last):File "<string>", line 2, in <module>File "<pip-setuptools-caller>", line 35, in <module>File "/mnt/disk2/zijie.zheng/projects/github/PhysGaussian/gaussian-splatting/submodules/diff-gaussian-rasterization/setup.py", line 17, in <module>setup(File "/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/setuptools/__init__.py", line 107, in setupreturn distutils.core.setup(**attrs)File "/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/setuptools/_distutils/core.py", line 185, in setupreturn run_commands(dist)File "/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/setuptools/_distutils/core.py", line 201, in run_commandsdist.run_commands()File "/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/setuptools/_distutils/dist.py", line 969, in run_commandsself.run_command(cmd)File "/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/setuptools/dist.py", line 1234, in run_commandsuper().run_command(command)File "/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/setuptools/_distutils/dist.py", line 988, in run_commandcmd_obj.run()File "/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/setuptools/command/develop.py", line 34, in runself.install_for_development()File "/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/setuptools/command/develop.py", line 111, in install_for_developmentself.run_command('build_ext')File "/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/setuptools/_distutils/cmd.py", line 318, in run_commandself.distribution.run_command(command)File "/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/setuptools/dist.py", line 1234, in run_commandsuper().run_command(command)File "/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/setuptools/_distutils/dist.py", line 988, in run_commandcmd_obj.run()File "/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/setuptools/command/build_ext.py", line 84, in run_build_ext.run(self)File "/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/setuptools/_distutils/command/build_ext.py", line 345, in runself.build_extensions()File "/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/torch/utils/cpp_extension.py", line 499, in build_extensions_check_cuda_version(compiler_name, compiler_version)File "/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/torch/utils/cpp_extension.py", line 387, in _check_cuda_versionraise RuntimeError(CUDA_MISMATCH_MESSAGE.format(cuda_str_version, torch.version.cuda))RuntimeError:The detected CUDA version (12.9) mismatches the version that was used to compilePyTorch (11.8). Please make sure to use the same CUDA versions.[end of output]note: This error originates from a subprocess, and is likely not a problem with pip.
error: subprocess-exited-with-error× python setup.py develop did not run successfully.
│ exit code: 1
╰─> [76 lines of output]running develop/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/setuptools/command/develop.py:40: EasyInstallDeprecationWarning: easy_install command is deprecated.!!********************************************************************************Please avoid running ``setup.py`` and ``easy_install``.Instead, use pypa/build, pypa/installer or otherstandards-based tools.See https://github.com/pypa/setuptools/issues/917 for details.********************************************************************************!!easy_install.initialize_options(self)/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/setuptools/_distutils/cmd.py:66: SetuptoolsDeprecationWarning: setup.py install is deprecated.!!********************************************************************************Please avoid running ``setup.py`` directly.Instead, use pypa/build, pypa/installer or otherstandards-based tools.See https://blog.ganssle.io/articles/2021/10/setup-py-deprecated.html for details.********************************************************************************!!self.initialize_options()running egg_infowriting diff_gaussian_rasterization.egg-info/PKG-INFOwriting dependency_links to diff_gaussian_rasterization.egg-info/dependency_links.txtwriting top-level names to diff_gaussian_rasterization.egg-info/top_level.txt/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/torch/utils/cpp_extension.py:476: UserWarning: Attempted to use ninja as the BuildExtension backend but we could not find ninja.. Falling back to using the slow distutils backend.warnings.warn(msg.format('we could not find ninja.'))reading manifest file 'diff_gaussian_rasterization.egg-info/SOURCES.txt'adding license file 'LICENSE.md'writing manifest file 'diff_gaussian_rasterization.egg-info/SOURCES.txt'running build_extTraceback (most recent call last):File "<string>", line 2, in <module>File "<pip-setuptools-caller>", line 35, in <module>File "/mnt/disk2/zijie.zheng/projects/github/PhysGaussian/gaussian-splatting/submodules/diff-gaussian-rasterization/setup.py", line 17, in <module>setup(File "/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/setuptools/__init__.py", line 107, in setupreturn distutils.core.setup(**attrs)File "/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/setuptools/_distutils/core.py", line 185, in setupreturn run_commands(dist)File "/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/setuptools/_distutils/core.py", line 201, in run_commandsdist.run_commands()File "/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/setuptools/_distutils/dist.py", line 969, in run_commandsself.run_command(cmd)File "/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/setuptools/dist.py", line 1234, in run_commandsuper().run_command(command)File "/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/setuptools/_distutils/dist.py", line 988, in run_commandcmd_obj.run()File "/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/setuptools/command/develop.py", line 34, in runself.install_for_development()File "/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/setuptools/command/develop.py", line 111, in install_for_developmentself.run_command('build_ext')File "/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/setuptools/_distutils/cmd.py", line 318, in run_commandself.distribution.run_command(command)File "/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/setuptools/dist.py", line 1234, in run_commandsuper().run_command(command)File "/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/setuptools/_distutils/dist.py", line 988, in run_commandcmd_obj.run()File "/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/setuptools/command/build_ext.py", line 84, in run_build_ext.run(self)File "/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/setuptools/_distutils/command/build_ext.py", line 345, in runself.build_extensions()File "/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/torch/utils/cpp_extension.py", line 499, in build_extensions_check_cuda_version(compiler_name, compiler_version)File "/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/torch/utils/cpp_extension.py", line 387, in _check_cuda_versionraise RuntimeError(CUDA_MISMATCH_MESSAGE.format(cuda_str_version, torch.version.cuda))RuntimeError:The detected CUDA version (12.9) mismatches the version that was used to compilePyTorch (11.8). Please make sure to use the same CUDA versions.[end of output]

排查错因：
（1）想通过输入which nvcc的方式来查询当前cuda的路径，结果没有输出任何内容。
（2）想通过输入nvcc -V的方式查看cuda版本，结果输出是：

nvcc -V
Command 'nvcc' not found, but can be installed with:
apt install nvidia-cuda-toolkit
Please ask your administrator.

（3）输入ls /usr/local | grep cuda，想要查看系统中是否有 CUDA 相关文件，输出结果为：

cuda
cuda-12
cuda-12.9

并没有预期的cuda 11.8。GPT说若输出类似cuda或cuda-11.8，说明 CUDA 已安装但未配置环境变量。若没有输出，说明 CUDA 未安装。
需要安装CUDA。

解决方案
去官网找CUDA 11.8 安装包：https://developer.nvidia.com/cuda-toolkit-archive
在这里插入图片描述
运行命令：
wget https://developer.download.nvidia.com/compute/cuda/11.8.0/local_installers/cuda_11.8.0_520.61.05_linux.run
随后为安装程序添加执行权限。但因为我没有管理员权限，所以选择使用 --silent 静默安装，并指定 --toolkit 只安装工具链。

# 为安装程序添加执行权限
chmod +x cuda_11.8.0_520.61.05_linux.run# 使用 --silent 静默安装，并指定 --toolkit 只安装工具链
./cuda_11.8.0_520.61.05_linux.run \--silent \--toolkit \--toolkitpath=$HOME/cuda-11.8 \--override

然后配置环境变量，这里有两种配置方式，一种是暂时的，一种是永久的。推荐使用永久的。
永久的：

echo 'export PATH=$HOME/cuda-11.8/bin:$PATH' >> ~/.bashrc
echo 'export LD_LIBRARY_PATH=$HOME/cuda-11.8/lib64:$LD_LIBRARY_PATH' >> ~/.bashrc
source ~/.bashrc

暂时的（只在当前终端有效）：

export PATH=$HOME/cuda-11.8/bin:$PATH
export LD_LIBRARY_PATH=$HOME/cuda-11.8/lib64:$LD_LIBRARY_PATH

配置完成后再输入nvcc -V，就能看到版本信息了（cuda 11.8）。因此推测一开始检测到的CUDA version (12.9)是系统的cuda版本，不是当前环境中的，因此造成了冲突。此时，运行pip install -e gaussian-splatting/submodules/diff-gaussian-rasterization/也不会再报同样的错误。

二、error – unsupported GNU version! gcc versions later than 11 are not supported!

运行pip install -e gaussian-splatting/submodules/diff-gaussian-rasterization/的时候出现以下报错：

pip install -e gaussian-splatting/submodules/diff-gaussian-rasterization/
Obtaining file:///mnt/disk2/zijie.zheng/projects/github/PhysGaussian/gaussian-splatting/submodules/diff-gaussian-rasterizationPreparing metadata (setup.py) ... done
Installing collected packages: diff-gaussian-rasterizationDEPRECATION: Legacy editable install of diff-gaussian-rasterization==0.0.0 from file:///mnt/disk2/zijie.zheng/projects/github/PhysGaussian/gaussian-splatting/submodules/diff-gaussian-rasterization (setup.py develop) is deprecated. pip 25.3 will enforce this behaviour change. A possible replacement is to add a pyproject.toml or enable --use-pep517, and use setuptools >= 64. If the resulting installation is not behaving as expected, try using --config-settings editable_mode=compat. Please consult the setuptools documentation for more information. Discussion can be found at https://github.com/pypa/pip/issues/11457Running setup.py develop for diff-gaussian-rasterizationerror: subprocess-exited-with-error× python setup.py develop did not run successfully.│ exit code: 1╰─> [47 lines of output]running develop/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/setuptools/command/develop.py:40: EasyInstallDeprecationWarning: easy_install command is deprecated.!!********************************************************************************Please avoid running ``setup.py`` and ``easy_install``.Instead, use pypa/build, pypa/installer or otherstandards-based tools.See https://github.com/pypa/setuptools/issues/917 for details.********************************************************************************!!easy_install.initialize_options(self)/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/setuptools/_distutils/cmd.py:66: SetuptoolsDeprecationWarning: setup.py install is deprecated.!!********************************************************************************Please avoid running ``setup.py`` directly.Instead, use pypa/build, pypa/installer or otherstandards-based tools.See https://blog.ganssle.io/articles/2021/10/setup-py-deprecated.html for details.********************************************************************************!!self.initialize_options()running egg_infowriting diff_gaussian_rasterization.egg-info/PKG-INFOwriting dependency_links to diff_gaussian_rasterization.egg-info/dependency_links.txtwriting top-level names to diff_gaussian_rasterization.egg-info/top_level.txt/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/torch/utils/cpp_extension.py:476: UserWarning: Attempted to use ninja as the BuildExtension backend but we could not find ninja.. Falling back to using the slow distutils backend.warnings.warn(msg.format('we could not find ninja.'))reading manifest file 'diff_gaussian_rasterization.egg-info/SOURCES.txt'adding license file 'LICENSE.md'writing manifest file 'diff_gaussian_rasterization.egg-info/SOURCES.txt'running build_ext/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/torch/utils/cpp_extension.py:398: UserWarning: There are no g++ version bounds defined for CUDA version 11.8warnings.warn(f'There are no {compiler_name} version bounds defined for CUDA version {cuda_str_version}')building 'diff_gaussian_rasterization._C' extension/mnt/disk2/zijie.zheng/cuda-11.8/bin/nvcc -I/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/torch/include -I/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/torch/include/torch/csrc/api/include -I/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/torch/include/TH -I/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/torch/include/THC -I/mnt/disk2/zijie.zheng/cuda-11.8/include -I/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/include/python3.9 -c cuda_rasterizer/backward.cu -o build/temp.linux-x86_64-cpython-39/cuda_rasterizer/backward.o -D__CUDA_NO_HALF_OPERATORS__ -D__CUDA_NO_HALF_CONVERSIONS__ -D__CUDA_NO_BFLOAT16_CONVERSIONS__ -D__CUDA_NO_HALF2_OPERATORS__ --expt-relaxed-constexpr --compiler-options '-fPIC' -I/mnt/disk2/zijie.zheng/projects/github/PhysGaussian/gaussian-splatting/submodules/diff-gaussian-rasterization/third_party/glm/ -DTORCH_API_INCLUDE_EXTENSION_H -DPYBIND11_COMPILER_TYPE=\"_gcc\" -DPYBIND11_STDLIB=\"_libstdcpp\" -DPYBIND11_BUILD_ABI=\"_cxxabi1011\" -DTORCH_EXTENSION_NAME=_C -D_GLIBCXX_USE_CXX11_ABI=0 -gencode=arch=compute_86,code=sm_86 -gencode=arch=compute_89,code=compute_89 -gencode=arch=compute_89,code=sm_89 -std=c++17In file included from /mnt/disk2/zijie.zheng/cuda-11.8/include/cuda_runtime.h:83,from <command-line>:/mnt/disk2/zijie.zheng/cuda-11.8/include/crt/host_config.h:132:2: error: #error -- unsupported GNU version! gcc versions later than 11 are not supported! The nvcc flag '-allow-unsupported-compiler' can be used to override this version check; however, using an unsupported host compiler may cause compilation failure or incorrect run time execution. Use at your own risk.132 | #error -- unsupported GNU version! gcc versions later than 11 are not supported! The nvcc flag '-allow-unsupported-compiler' can be used to override this version check; however, using an unsupported host compiler may cause compilation failure or incorrect run time execution. Use at your own risk.|  ^~~~~error: command '/mnt/disk2/zijie.zheng/cuda-11.8/bin/nvcc' failed with exit code 1[end of output]note: This error originates from a subprocess, and is likely not a problem with pip.
error: subprocess-exited-with-error× python setup.py develop did not run successfully.
│ exit code: 1
╰─> [47 lines of output]running develop/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/setuptools/command/develop.py:40: EasyInstallDeprecationWarning: easy_install command is deprecated.!!********************************************************************************Please avoid running ``setup.py`` and ``easy_install``.Instead, use pypa/build, pypa/installer or otherstandards-based tools.See https://github.com/pypa/setuptools/issues/917 for details.********************************************************************************!!easy_install.initialize_options(self)/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/setuptools/_distutils/cmd.py:66: SetuptoolsDeprecationWarning: setup.py install is deprecated.!!********************************************************************************Please avoid running ``setup.py`` directly.Instead, use pypa/build, pypa/installer or otherstandards-based tools.See https://blog.ganssle.io/articles/2021/10/setup-py-deprecated.html for details.********************************************************************************!!self.initialize_options()running egg_infowriting diff_gaussian_rasterization.egg-info/PKG-INFOwriting dependency_links to diff_gaussian_rasterization.egg-info/dependency_links.txtwriting top-level names to diff_gaussian_rasterization.egg-info/top_level.txt/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/torch/utils/cpp_extension.py:476: UserWarning: Attempted to use ninja as the BuildExtension backend but we could not find ninja.. Falling back to using the slow distutils backend.warnings.warn(msg.format('we could not find ninja.'))reading manifest file 'diff_gaussian_rasterization.egg-info/SOURCES.txt'adding license file 'LICENSE.md'writing manifest file 'diff_gaussian_rasterization.egg-info/SOURCES.txt'running build_ext/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/torch/utils/cpp_extension.py:398: UserWarning: There are no g++ version bounds defined for CUDA version 11.8warnings.warn(f'There are no {compiler_name} version bounds defined for CUDA version {cuda_str_version}')building 'diff_gaussian_rasterization._C' extension/mnt/disk2/zijie.zheng/cuda-11.8/bin/nvcc -I/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/torch/include -I/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/torch/include/torch/csrc/api/include -I/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/torch/include/TH -I/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/lib/python3.9/site-packages/torch/include/THC -I/mnt/disk2/zijie.zheng/cuda-11.8/include -I/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian/include/python3.9 -c cuda_rasterizer/backward.cu -o build/temp.linux-x86_64-cpython-39/cuda_rasterizer/backward.o -D__CUDA_NO_HALF_OPERATORS__ -D__CUDA_NO_HALF_CONVERSIONS__ -D__CUDA_NO_BFLOAT16_CONVERSIONS__ -D__CUDA_NO_HALF2_OPERATORS__ --expt-relaxed-constexpr --compiler-options '-fPIC' -I/mnt/disk2/zijie.zheng/projects/github/PhysGaussian/gaussian-splatting/submodules/diff-gaussian-rasterization/third_party/glm/ -DTORCH_API_INCLUDE_EXTENSION_H -DPYBIND11_COMPILER_TYPE=\"_gcc\" -DPYBIND11_STDLIB=\"_libstdcpp\" -DPYBIND11_BUILD_ABI=\"_cxxabi1011\" -DTORCH_EXTENSION_NAME=_C -D_GLIBCXX_USE_CXX11_ABI=0 -gencode=arch=compute_86,code=sm_86 -gencode=arch=compute_89,code=compute_89 -gencode=arch=compute_89,code=sm_89 -std=c++17In file included from /mnt/disk2/zijie.zheng/cuda-11.8/include/cuda_runtime.h:83,from <command-line>:/mnt/disk2/zijie.zheng/cuda-11.8/include/crt/host_config.h:132:2: error: #error -- unsupported GNU version! gcc versions later than 11 are not supported! The nvcc flag '-allow-unsupported-compiler' can be used to override this version check; however, using an unsupported host compiler may cause compilation failure or incorrect run time execution. Use at your own risk.132 | #error -- unsupported GNU version! gcc versions later than 11 are not supported! The nvcc flag '-allow-unsupported-compiler' can be used to override this version check; however, using an unsupported host compiler may cause compilation failure or incorrect run time execution. Use at your own risk.|  ^~~~~error: command '/mnt/disk2/zijie.zheng/cuda-11.8/bin/nvcc' failed with exit code 1

报错原因：
这个报错是GCC版本和CUDA的兼容性问题有关。CUDA 11.8 使用的是基于 GCC 9.x 或 GCC 10.x 的兼容性最好的编译器版本。如果你系统默认的 GCC 是 11 或更高（特别是 12+），就会引发这种兼容性错误。
我们的系统GCC版是13.3.0，因此发生报错。

解决方法：
主要思路是在没有管理员权限的情况下降低GCC版本，试了好几种方法，下面这种方法成功了。
（1）激活当前的 Conda 环境：conda activate PhysGaussian
（2）安装 GCC 9：conda install -c conda-forge gcc_linux-64=9 gxx_linux-64=9
（3）设置环境变量让 Python/CUDA 使用这个 GCC：

export CC=$CONDA_PREFIX/bin/x86_64-conda-linux-gnu-gcc
export CXX=$CONDA_PREFIX/bin/x86_64-conda-linux-gnu-g++

（4）验证 GCC 版本：$CC --version
验证结果如下，表示安装成功：

x86_64-conda-linux-gnu-cc (conda-forge gcc 9.5.0-19) 9.5.0
Copyright (C) 2019 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

（5）重新运行命令：pip install -e gaussian-splatting/submodules/diff-gaussian-rasterization/

三、Unknown encoder ‘libx264’

运行命令python gs_simulation.py --model_path ./model/ficus_whitebg-trained/ --output_path output --config ./config/ficus_config.json --render_img --compile_video --white_bg的时候出现报错。
报错内容：主要是最后一行Unknown encoder ‘libx264’

configuration: --prefix=/mnt/disk2/zijie.zheng/anaconda3/envs/PhysGaussian --cc=/opt/conda/conda-bld/ffmpeg_1597178665428/_build_env/bin/x86_64-conda_cos6-linux-gnu-cc --disable-doc --disable-openssl --enable-avresample --enable-gnutls --enable-hardcoded-tables --enable-libfreetype --enable-libopenh264 --enable-pic --enable-pthreads --enable-shared --disable-static --enable-version3 --enable-zlib --enable-libmp3lamelibavutil      56. 51.100 / 56. 51.100libavcodec     58. 91.100 / 58. 91.100libavformat    58. 45.100 / 58. 45.100libavdevice    58. 10.100 / 58. 10.100libavfilter     7. 85.100 /  7. 85.100libavresample   4.  0.  0 /  4.  0.  0libswscale      5.  7.100 /  5.  7.100libswresample   3.  7.100 /  3.  7.100
Input #0, image2, from 'output/%04d.png':Duration: 00:00:05.00, start: 0.000000, bitrate: N/AStream #0:0: Video: png, rgb24(pc), 800x800, 25 fps, 25 tbr, 25 tbn, 25 tbc
Unknown encoder 'libx264'

报错原因：这意味着 ffmpeg 没有编译 libx264 支持，因此无法使用 libx264 编码器导出 .mp4 等常见格式视频。
解决方法：
用conda list查看了一下当前ffmpeg的版本为 4.3，升级到指定版本4.3.1就行。

conda install -c conda-forge ffmpeg=4.3.1

安装后可用ffmpeg -encoders | grep libx264检查libx264是否可用。
PS：不要用conda install -c conda-forge ffmpeg，没有指定版本，一下子把ffmpeg的版本号升级到7.几，环境里的包出现了各种不兼容情况，一下子乱成一锅粥TvT。

四、下载速度太慢、无法递归下载项目

使用readme文件中给的方法下载速度太慢了。

git clone --recurse-submodules git@github.com:XPandora/PhysGaussian.git

使用了代理后下载速度还是很慢，发现是因为没有使用http协议，于是换成了http协议，下载速度明显变快。
但“–recurse-submodules”并没有起作用，项目中引用的一些其他项目并不能被下载下来。所以只能手动下载并添加到对应路径中去了。