colmap building error: Could not find a package configuration file provided by "Ceres"

[wzb1005]

Hi,
when I am building the "colmap", I met the problem below:
CMake Error at CMakeLists.txt:87 (find_package):
By not providing "FindCeres.cmake" in CMAKE_MODULE_PATH this project has
asked CMake to find a package configuration file provided by "Ceres", but
CMake did not find one.

Could not find a package configuration file provided by "Ceres" with any of
the following names:

CeresConfig.cmake
ceres-config.cmake

Add the installation prefix of "Ceres" to CMAKE_PREFIX_PATH or set
"Ceres_DIR" to a directory containing one of the above files. If "Ceres"
provides a separate development package or SDK, be sure it has been
installed.

-- Configuring incomplete, errors occurred!
How to solve it?

[ahojnnes]

By installing Ceres. Please refer to the documentation of COLMAP for further details.

[BETLOG]

I realise its trivial to people who do this all day, but for people copying and pasting it requires a tiny bit more consideration towards the precise correctness of the directions given.
ie: vis: https://colmap.github.io/install.html
Is perfectly clear, but if the user doesnt add several "cd ~" at the right places the process fails and no doubt creates a bunch of nested copies of source in the wrong places.
...after having it fail and realising this I deleted everything and pasted this (with my various 'cd ~' inclusions), and now it works as easily as the instructions suggest.

cd ~ # betlog
# 
git clone https://github.com/colmap/colmap
# 
sudo apt-get install \
    git \
    cmake \
    build-essential \
    libboost-program-options-dev \
    libboost-filesystem-dev \
    libboost-graph-dev \
    libboost-regex-dev \
    libboost-system-dev \
    libboost-test-dev \
    libeigen3-dev \
    libsuitesparse-dev \
    libfreeimage-dev \
    libgoogle-glog-dev \
    libgflags-dev \
    libglew-dev \
    qtbase5-dev \
    libqt5opengl5-dev \
    libcgal-dev
# 
# Under Ubuntu 16.04/18.04 the CMake configuration scripts of CGAL are broken and you must also install the CGAL Qt5 package:
# 
sudo apt-get install libcgal-qt5-dev
sudo apt-get install libatlas-base-dev libsuitesparse-dev
# 
cd ~ # betlog
# 
git clone https://ceres-solver.googlesource.com/ceres-solver
cd ceres-solver
git checkout $(git describe --tags) # Checkout the latest release
mkdir build
cd build
cmake .. -DBUILD_TESTING=OFF -DBUILD_EXAMPLES=OFF
make -j
sudo make install
# 
cd ~ # betlog
# 
git clone https://github.com/colmap/colmap.git
cd colmap
git checkout dev
mkdir build
cd build
cmake ..
make -j
sudo make install
# 
cd ~ # betlog
# 
# Under newer Ubuntu versions it might be necessary to explicitly select the used GCC version due to compatiblity issues with CUDA, which can be done as:
# 
# # # # # # # CC=/usr/bin/gcc-6 CXX=/usr/bin/g++-6 cmake ..
# 
# 
# Run COLMAP:
# 
colmap -h
colmap gui

[AlexBlck]

In my case, I had to chmod change permissions to /usr/local/lib/cmake/, since /usr/local/lib/cmake/Ceres was there, but couldn't be read.

[Kai-46]

In my case, I had to chmod change permissions to /usr/local/lib/cmake/, since /usr/local/lib/cmake/Ceres was there, but couldn't be read.

I encountered the same issue while working with AWS instances, and managed to solve it by changing the permission sudo chmod -R 777 /usr/local/lib/cmake/