问题描述
demo指路：https://github.com/EdVince/Stable-Diffusion-NCNN
在Linux端使用cmake编译文件时，
cd x86/linux
mkdir -p build && cd build
cmake ..
make -j$(nproc)
执行cmake ..命令，报错：
CMake Error at CMakeLists.txt:14 (FIND_PACKAGE):
By not providing "Findncnn.cmake" in CMAKE_MODULE_PATH this project has
asked CMake to find a package configuration file provided by "ncnn", but
CMake did not find one.
Could not find a package configuration file provided by "ncnn" with any of
the following names:
ncnnConfig.cmake
ncnn-config.cmake
Add the installation prefix of "ncnn" to CMAKE_PREFIX_PATH or set
"ncnn_DIR" to a directory containing one of the above files. If "ncnn"
provides a separate development package or SDK, be sure it has been
installed.
-- Configuring incomplete, errors occurred!
See also "/home/gaoyi/ldm-ncnn/Stable-Diffusion-NCNN/x86/linux/CMakeFiles/CMakeOutput.log".
问题原因
拉取ncnn的代码库（包括submodule）后没有build and Install，所以cmake时找不到对应的包，只需要让它找到对应的包即可，分为2步：
- 生成对应的cmake文件（
ncnnConfig.cmake、ncnn-config.cmake） - 设置环境变量（
CMAKE_PREFIX_PATH或者ncnn_DIR）
解决方法
-
build and Installncnn
需要执行以下命令：
cd ncnn
mkdir -p build
cd build
cmake ..
cmake之后继续在build目录下，执行：
make install
发现弹出的信息中有：
这其中的ncnnConfig.cmake、ncnn.cmake就是我们需要找的包，找到上一级目录，右键复制路径
- 设置环境变量
export ncnn_DIR=/home/gaoyi/ldm-ncnn/Stable-Diffusion-NCNN/ncnn/build/install/lib/cmake/ncnn
这个环境变量就是上一步复制的路径
- 重新运行
cmake
cmake ..
看到：文章来源：https://www.toymoban.com/news/detail-511587.html
-- Configuring done
-- Generating done
-- Build files have been written to: /home/gaoyi/ldm-ncnn/Stable-Diffusion-NCNN/x86/linux
成功！文章来源地址https://www.toymoban.com/news/detail-511587.html
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