Opencv_contrib: Duplicate Modules NAMES has been found OpenCV & Contrib latest

[awmiller]

System information (version)

• OpenCV =>Latest from github.com/opencv/opencv
• Operating System / Platform => Windows 64 Bit
• Compiler => Visual Studio 2015

Detailed description

Using CMAKE gui, after first configure, I set the OPENCV_EXTRA_MODULES_PATH and check OPENCV_ENABLE_NONFREE.

Short Error:
CMake Error at cmake/OpenCVModule.cmake:352 (message):
Duplicated modules NAMES has been found
Call Stack (most recent call first):
cmake/OpenCVModule.cmake:370 (_assert_uniqueness)
modules/CMakeLists.txt:7 (ocv_glob_modules)

see attached files for details
CMakeError.log
CMakeOutput.log

Steps to reproduce

follow OpenCV CMAKE Gui Tutorial, and Contrib Gui Tutorial in README

[alalek]

You must use code from the same branch name.

[awmiller]

is "master" on each not good enough?

[harounbest]

i am facing the same problem any suggestion please

[SimonStHilaire]

Just delete those folders in the opencv_contrib\modules folder but you are probaly out of synch. I had the same problem. Pulled again opencv and everything is fixed now.

[chenzhi1992]

I met the same problem, and I solved it. My opencv version is 3.4
git clone https://github.com/opencv/opencv_contrib.git
cd opencv_contrib
git checkout 3.4

[jtrevino72]

I met the same problem, and I solved it. My opencv version is 3.4
git clone https://github.com/opencv/opencv_contrib.git
cd opencv_contrib
git checkout 3.4

It worked for me, thanks a lot !
You should do it also for the opencv directory from git, the same:
cd opencv
git checkout 3.4

[libichong]

From the build log, it will report the error:
error C2065: 'off64_t': undeclared identifier

but it will be solved by the same action. It still works on 2019/9/5.

[zchrissirhcz]

You must use code from the same branch name.

It would be more precise to say:
We must use code from the same tag name.

For example:

cd ~/work
git clone https://github.com/opencv/opencv
cd opencv
git checkout -b 4.4.0 4.4.0

cd ..
git clone https://github.com/opencv/opencv_contrib
cd opencv_contrib
git checkout -b 4.4.0 4.4.0

[aaron-asl]

I met the same problem, and I solved it. My opencv version is 3.4
git clone https://github.com/opencv/opencv_contrib.git
cd opencv_contrib
git checkout 3.4

Worked for me! Thanks!