Sorry for that, I’ll avoid that next time.
The dir exists indeed.
And the structure is like this
opencv-4.5.2
├─opencv-build
│ ├─3rdparty
│ ├─apps
│ ├─bin
│ ├─CMakeFiles
│ ├─configured
│ ├─data
│ ├─doc
│ ├─include
│ ├─lib
│ ├─modules
│ ├─opencv2
│ ├─python_loader
│ ├─test-reports
│ ├─tmp
│ └─win-install
└─sources
├─.cache
├─3rdparty
├─apps
├─cmake
├─data
├─doc
├─include
├─modules
├─platforms
└─samples
The last 10 directories belong to /soures, the retracts in the code block is a little unclear.