26 days ago by
RNA STAR is not known to be associated with the current metadata issues at https://usegalaxy.org with certain mapping tools (details here).
Even if the same data used with work with Tophat, it is still a good idea to start by checking your inputs when this type of error results. You might also want to try using HISAT2 instead, as RNA STAR uses more resources and can fail for memory reasons with certain inputs (some resource failures will report with the error you describe).
If you cannot find the problem, and are working at https://usegalaxy.org or can reproduce the error there, a bug report can be sent in. Please leave all inputs/outputs undeleted and include a link to this post in the comments. If there is a true issue with the tool itself, we definitely want to clarify the root problem and get it fixed. No examples of this specific error, for this tool, exist right now.
Thanks! Jen, Galaxy team