I'm new to the forum and I need some help with the new sample IDs of my grouped samples. I'd like to group the samples in before, during and after treatment, so I used the feature-table group plugin with the following command:
qiime feature-table group
I created another metadata-file with before, during and after treatment as new sample-IDs. When I try to work with the grouped table and the new metadata-file, I receive the error message 'Metadata IDs must be unique'.
Another user struggled with the same issue and the suggested solution was to remove the duplicates in the metadata (Grouping samples with 'group'). I did that but now I get another error message saying 'Detected empty metadata ID'.
Can anyone help me? Thanks in advance!