Hello @bettya,
Yes! exactly you just need to show QIIME2 exactly where that directory is!
The error is saying QIIME2 is expecting a compressed file. Basically a compressed file is a file that has been shrunk down so that it doesn't take up so much storage. So QIIME2 is saying that the files are not compressed and we will have to get them compressed in order to successfully import.
If these are your files (I think they are probably the tutorial files? ) I would suggest taking a look at this. You will have to gzip those files.
If these are from the tutorial, I am not sure what is happening, but I would maybe re-download them? I also know that the person in the link above was able to just gzip the files and was able to find success.
I hope this helps!
Chloe 