bugs when compile

[cuge1995]

 Could not find a configuration file for package "OpenCV" that is compatible
  with requested version "3".

  The following configuration files were considered but not accepted:

    /usr/lib/x86_64-linux-gnu/cmake/opencv4/OpenCVConfig.cmake, version: 4.2.0
    /lib/x86_64-linux-gnu/cmake/opencv4/OpenCVConfig.cmake, version: 4.2.0

I installed Opencv3 as your requirement.txt

[ethnhe]

As the error says, the normalSpeed project requires OpenCV version 3 but it seems you've installed opencv4. Try compile opencv3 from the source code, on the version 3.4 branch . And then compiled again.

[an99990]

I did what @ethnhe suggested and it still gives me the same error @cuge1995 has.

Im installing eerything in a pipenv env, This is what I get when i do pipenv graph

error image message:

[ethnhe]

So it seems that the program can not find your installed opencv3 path correctly but use the opencv4 version 4.2, several ways that maybe will solve the problem.

• Modify this line of code to find_package(OpenCV 4 REQUIRED) to see if normalSpeed support OpenCV 4.
• Rather than using find_package to automatically find the required OpenCV package, define the OpenCV 3 path manually.
• The problem is caused by the previously installed OpenCV 4, uninstall OpenCV 4, and install OpenCV 3.

[an99990]

1- normalSpeed doesnt support opencv4 2- try to force path with find_package(OpenCV 3 EXACT REQUIRED PATHS ...) but still find opencv4 3- last solution didnt try yet.

[ghost]

Hey @an99990, have you managed to resolve your issue ?

I'm facing exactly the same problem. Would really appreciate it to have your feedback on this.

[an99990]

i cant remember exactly im sorry, but i think i installed opencv with source and it somehow worked