![]() This can be accomplished by manually editing the file using an editor such as nano, vi, etc. Once Homebrew is installed you need to update your PATH to look for Homebrew binaries, packages, and libraries. Note: Make sure you use the “” button in the code block above to expand section - this will ensure you copy and paste the entire Homebrew install command. If not, please take the time to open the App Store and install XCode.įrom there, you’ll need to install Homebrew, a package manager for macOS, similar to Debian/Ubuntu’s apt-get : $ ruby -e "$(curl -fsSL )" I’ll assume you already have XCode installed on your macOS machine. Once you have installed dlib on your respective operating system we’ll validate the install by using Python, dlib, and OpenCV ( provided you have OpenCV installed as well), to detect facial landmarks.įrom there, I have provided additional tutorials and guides to help apply dlib to computer vision and machine learning projects, including detecting and counting blinks and building a system to recognize when the driver of a vehicle is becoming drowsy/tired (and alerting them to wake up). Please feel free to skip to the section that corresponds to your operating system. In this guide you’ll learn how to install dlib on macOS, Ubuntu, and Raspbian. Remember to try these solutions one by one and test if the issue is resolved after each step.Looking for the source code to this post? Jump Right To The Downloads Section Install dlib (the easy, complete guide) By following the solutions outlined in this article, you should be able to resolve the issue and get back to your project. The “CMake cannot find PythonLibs” error can be a roadblock in your software development process, but it’s not insurmountable. You can download the latest version of CMake from the official website and install it manually. Starting from CMake 3.0, it supports searching up to Python 3.4. If none of the above solutions work, you might be using an outdated version of CMake that doesn’t support the Python version installed on your system. It will perform a fresh configuration and might be able to find the PythonLibs. ![]() In this command, rm is a command that removes files or directories, and CMakeCache.txt is the file we’re removing.Īfter removing the cache, rerun CMake. To remove the CMake cache file, run the following command in your terminal: rm CMakeCache.txt In this case, you can try removing the CMake cache file ( CMakeCache.txt) and then rerun CMake. Sometimes, the problem might be due to a cached configuration. In this command, set is a CMake command that sets a variable to a value, Python_ADDITIONAL_VERSIONS is the variable we’re setting, and 3.4 is the value we’re setting it to. In this case, you can specify the Python version in your CMakeLists.txt file.įor instance, if you want to specify Python version 3.4, add the following lines before the find_package statement: set(Python_ADDITIONAL_VERSIONS 3.4) If you have multiple versions of Python installed on your system, CMake may be struggling to find the correct version. In this command, sudo allows you to run commands with the security privileges of the superuser, while apt-get install is used to install packages.Īfter running this command, try building your software again to see if the issue has been resolved. You can install python-dev by running the following command in your terminal: sudo apt-get install python-dev This package contains the header files you need to build Python extensions. The first solution to this problem is installing the python-dev package. When CMake can’t find PythonLibs, it means it’s unable to locate the necessary Python libraries for building your software. CMake is a cross-platform build system that uses scripts to control the software’s build process, in a compiler-independent manner. ![]() Before we delve into the solutions, it’s important to understand what the error means.
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