结构从运动(openCV）:“重建”未在此范围内声明

我是opencv库的初学者。我已经在 Ubuntu 17.04 上安装了它，安装过程中的一切都很完美，完全没有错误。我已经安装了Opencv-master，构建了它，然后我下载了opencv_contrib-master，一切都很完美。

我正在尝试使用 SFM（运动结构）构建scene_reconstruction。我已经安装了所有依赖项：

sudo apt-get install libeigen3-dev libgflags-dev libgoogle-glog-dev

然后我安装了谷神星求解器：

git clone https://ceres-solver.googlesource.com/ceres-solver
cd ceres-solver
mkdir build && cd build
cmake ..
make -j4
make test
sudo make install

一切都还好，完全没有错误。我试图按照这里的官方文档（场景重建）编写example_sfm_scene_reconstruction.cpp，将其命名为重建.cpp。

我写了CMakeLists.txt文件：

cmake_minimum_required(VERSION 2.6 FATAL_ERROR)
project( Reconstruct )
include_directories( /usr/local/include/eigen3 )
find_package( OpenCV REQUIRED )
find_package( Eigen3 REQUIRED )
add_executable( Reconstruct Reconstruct.cpp )
target_link_libraries( Reconstruct ${OpenCV_LIBS})

我已经创建了构建目录并使用 mkdir build && cd build 打开了它。然后cmake ..：

-- The C compiler identification is GNU 6.3.0
-- The CXX compiler identification is GNU 6.3.0
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Found OpenCV: /usr/local (found version "3.3.1") 
-- Configuring done
-- Generating done
-- Build files have been written to: /home/simocolna/Scrivania/SFM/build

但是当我尝试执行make时，出现此错误：

error: ‘reconstruct’ was not declared in this scope
 econstruct(images_paths, Rs_est, ts_est, K,
points3d_estimated,is_projective);

试图关注这个论坛问题 476，但任何事情都帮助了我。