Cityscapes

Step 1. Download Cityscapes dataset. Two files: gtFine_trainvaltest.zip and leftImg8bit_trainvaltest.zip

Step 2. Unpack both archives to the same directory

Step 3. Directory structure have to be the following:

.
├── gtFine
│ ├── test
│ │ ├── ...
│ ├── train
│ │ ├── ...
│ └── val
│ ├── ...
└── leftImg8bit
├── test
│ ├── ...
├── train
│ ├── ...
└── val
└── ...

Step 4. Choose all (two) subdirectories (gtFine and leftImg8bit) and drag and drop them to browser.

If you drag and drop parent directory instead of its contents, import will crash.