I have paired-end data that is already demultiplexed and imported using the generic fastq commands. However, to move on to any quality filtering I have to be able to view the summary of the demultiplexing results, am I correct?
Hi @morganpuff! This error isn’t related to your data or qiime demux summarize, it’s a system configuration issue with your matplotlib installation. matplotlib’s default configuration requires a display, which you don’t appear to have (this is common if you’re logged into a server and don’t have an X server and X-forwarding set up).
This topic will show you how to configure matplotlib to work in a headless environment. Get in touch if you have any issues!