復現論文報錯解決

文章目錄

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、下載速度太慢、無法遞歸下載項目

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

在運行pip install -e gaussian-splatting/submodules/diff-gaussian-rasterization/ 的時候報錯
報錯內容（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.

報錯內容（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]

排查錯因：
（1）想通過輸入which nvcc的方式來查詢當前cuda的路徑，結果沒有輸出任何內容。
（2）想通過輸入nvcc -V的方式查看cuda版本，結果輸出是：

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

（3）輸入ls /usr/local | grep cuda，想要查看系統中是否有 CUDA 相關文件，輸出結果為：

cuda
cuda-12
cuda-12.9

并沒有預期的cuda 11.8。GPT說若輸出類似cuda或cuda-11.8，說明 CUDA 已安裝但未配置環境變量。若沒有輸出，說明 CUDA 未安裝。
需要安裝CUDA。

解決方案
去官網找CUDA 11.8 安裝包：https://developer.nvidia.com/cuda-toolkit-archive
在這里插入圖片描述
運行命令：
wget https://developer.download.nvidia.com/compute/cuda/11.8.0/local_installers/cuda_11.8.0_520.61.05_linux.run
隨后為安裝程序添加執行權限。但因為我沒有管理員權限，所以選擇使用 --silent 靜默安裝，并指定 --toolkit 只安裝工具鏈。

# 為安裝程序添加執行權限
chmod +x cuda_11.8.0_520.61.05_linux.run# 使用 --silent 靜默安裝，并指定 --toolkit 只安裝工具鏈
./cuda_11.8.0_520.61.05_linux.run \--silent \--toolkit \--toolkitpath=$HOME/cuda-11.8 \--override

然后配置環境變量，這里有兩種配置方式，一種是暫時的，一種是永久的。推薦使用永久的。
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

暫時的（只在當前終端有效）：

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

配置完成后再輸入nvcc -V，就能看到版本信息了（cuda 11.8）。因此推測一開始檢測到的CUDA version (12.9)是系統的cuda版本，不是當前環境中的，因此造成了沖突。此時，運行pip install -e gaussian-splatting/submodules/diff-gaussian-rasterization/也不會再報同樣的錯誤。

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

運行pip install -e gaussian-splatting/submodules/diff-gaussian-rasterization/的時候出現以下報錯：

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

報錯原因：
這個報錯是GCC版本和CUDA的兼容性問題有關。CUDA 11.8 使用的是基于 GCC 9.x 或 GCC 10.x 的兼容性最好的編譯器版本。如果你系統默認的 GCC 是 11 或更高（特別是 12+），就會引發這種兼容性錯誤。
我們的系統GCC版是13.3.0，因此發生報錯。

解決方法：
主要思路是在沒有管理員權限的情況下降低GCC版本，試了好幾種方法，下面這種方法成功了。
（1）激活當前的 Conda 環境：conda activate PhysGaussian
（2）安裝 GCC 9：conda install -c conda-forge gcc_linux-64=9 gxx_linux-64=9
（3）設置環境變量讓 Python/CUDA 使用這個 GCC：

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

（4）驗證 GCC 版本：$CC --version
驗證結果如下，表示安裝成功：

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）重新運行命令：pip install -e gaussian-splatting/submodules/diff-gaussian-rasterization/

三、Unknown encoder ‘libx264’

運行命令python gs_simulation.py --model_path ./model/ficus_whitebg-trained/ --output_path output --config ./config/ficus_config.json --render_img --compile_video --white_bg的時候出現報錯。
報錯內容：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'

報錯原因：這意味著 ffmpeg 沒有編譯 libx264 支持，因此無法使用 libx264 編碼器導出 .mp4 等常見格式視頻。
解決方法：
用conda list查看了一下當前ffmpeg的版本為 4.3，升級到指定版本4.3.1就行。

conda install -c conda-forge ffmpeg=4.3.1

安裝后可用ffmpeg -encoders | grep libx264檢查libx264是否可用。
PS：不要用conda install -c conda-forge ffmpeg，沒有指定版本，一下子把ffmpeg的版本號升級到7.幾，環境里的包出現了各種不兼容情況，一下子亂成一鍋粥TvT。

四、下載速度太慢、無法遞歸下載項目

使用readme文件中給的方法下載速度太慢了。

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

使用了代理后下載速度還是很慢，發現是因為沒有使用http協議，于是換成了http協議，下載速度明顯變快。
但“–recurse-submodules”并沒有起作用，項目中引用的一些其他項目并不能被下載下來。所以只能手動下載并添加到對應路徑中去了。