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Hi, As far as I understand it, to install opencv 4.0.0 on a mint 18 linux, i need to build it from sources. So I tried (and failed).

The Website (https://docs.opencv.org/4.0.0/d7/d9f/tutorial_linux_install.html) informs:

cd ~/<my_working_directory> git clone https://github.com/opencv/opencv.git git clone https://github.com/opencv/opencv_contrib.git

cd ~/opencv mkdir build cd build

so far nothing exciting. Next:

cmake -D CMAKE_BUILD_TYPE=Release -D CMAKE_INSTALL_PREFIX=/usr/local ..

which yields: CMake Error at CMakeLists.txt:11 (message):

FATAL: In-source builds are not allowed.

     You should create a separate directory for build files.

-- Configuring incomplete, errors occurred!

I tried to add -DCMAKE_SOURCE_DIR and/or -DMAKE_BINARY_DIR but more or less in vain.

Can someone help me?

Regards

Leo

Hi, As far as I understand it, to install opencv 4.0.0 on a mint 18 linux, i need to build it from sources. So I tried (and failed).

The Website (https://docs.opencv.org/4.0.0/d7/d9f/tutorial_linux_install.html) informs:

cd ~/<my_working_directory> ~/<my_working_directory>

git clone https://github.com/opencv/opencv.git https://github.com/opencv/opencv.git

git clone https://github.com/opencv/opencv_contrib.git

cd ~/opencv ~/opencv

mkdir build build

cd build

so far nothing exciting. Next:

cmake -D CMAKE_BUILD_TYPE=Release -D CMAKE_INSTALL_PREFIX=/usr/local ..

which yields: CMake Error at CMakeLists.txt:11 (message):

FATAL: In-source builds are not allowed.

     You should create a separate directory for build files.

-- Configuring incomplete, errors occurred!

I tried to add -DCMAKE_SOURCE_DIR and/or -DMAKE_BINARY_DIR but more or less in vain.

Can someone help me?

Regards

Leo

Hi, As far as I understand it, to install opencv 4.0.0 on a mint 18 linux, i need to build it from sources. So I tried (and failed).

The Website (https://docs.opencv.org/4.0.0/d7/d9f/tutorial_linux_install.html) informs:

cd ~/<my_working_directory>
 
~/<my_working_directory>
git clone https://github.com/opencv/opencv.git
 
https://github.com/opencv/opencv.git
git clone https://github.com/opencv/opencv_contrib.githttps://github.com/opencv/opencv_contrib.git
  
cd ~/opencv
 
~/opencv
mkdir build
 
build
cd buildbuild

cmake -D CMAKE_BUILD_TYPE=Release -D CMAKE_INSTALL_PREFIX=/usr/local ..
..

CMake Error at CMakeLists.txt:11 (message):
(message):
 
 FATAL: In-source builds are not allowed.allowed.
  
      You should create a separate directory for build files.
 
 -- Configuring incomplete, errors occurred!occurred!