Totally! new to Galaxy. Trying to learn with the aid of the tutorial, finding SNPs into Exons. I follow every detail and once I finish incorporating the details into bed intersect intervals always an error pops after I run the tool… I have repeated it so many times, even by adding the Exons/SNPs data from UCSC main but still on the history error… I am lost. Thank you
Welcome @elenia !!
To make sure we are talking about the same tutorial and step, is this correct?
- Hands-on: Galaxy Basics for genomics / Galaxy Basics for genomics / Introduction to Galaxy Analyses (#hands-on-finding-exons)
If so, my first guess would be to confirm that you are using the correct tool. If you open the tutorial within Galaxy using the 
icon in the top masthead, you will be able to click on the tool to open it within the application. Maybe try that first and compare to the tool (and version of that tool!) that you originally used? And try again if those differ?
If that is not enough, another common problem can be within the input files. The data for both must be from the same genome assembly. The two example files in the step right before the one I linked offers data from hg38 chr22. If you use that data, does it work? If so, but the manipulation fails on your own files, this isolate the issue to the data, which you could investigate more.
Please let us know if this helps or if you would like more help! It is difficult to guess more without seeing the job, so you are welcome to share back your history for more specific feedback.
Let’s start there! 