##cannot mmap an empty file

[senioralmog93]

Describe the issue:

i run kilosort for the first time and when i run the GUI this message pops up on the message log box : "cannot mmap an empty file" and when i try to upload my binary data file it return this message "ERROR: Please select a valid binary file path.
Traceback (most recent call last):
File "C:\Users\senio\anaconda3\envs\kilosort\lib\site-packages\kilosort\gui\settings_box.py", line 413, in on_data_file_path_changed
assert self.check_valid_binary_path(data_file_path)
AssertionError"

[jacobpennington]

Hello,
That error is raised if the file you selected doesn't have an appropriate file extension. What does the full path to the file look like?

[victornovakov]

Hello this is happening to me as well. I am trying to use a file from the linked mainenlab public data set in tutorials. I am selecting it in the gui from my downloads.

[victornovakov]

I think it is because I am selecting a cbin file instead of a bin file. It seems that the public data set from the flat iron institute which is linked contains only cbin files. Decompressing using mtscomp gives an array object instead of a bin file. I would like to test kilosort with public data and do not know how to go about it. Any help would be greatly appreciated.

[jacobpennington]

Correct, a .cbin file would not work. There is a way to pass array objects directly to run_kilosort through the API, which I can explain if needed, but looking briefly at the mtscomp tool you mentioned it looks like it should be able to just output .bin files for you. I'm looking at the instructions here: https://github.com/int-brain-lab/mtscomp, which say to do this for example to convert a .cbin file to .bin: # Decompression mtsdecomp data.cbin -o data.decomp.bin

[jacobpennington]

Please let us know if you have any more questions about this, I'm closing this for now.