We are attempting to do a paired end mapping and have been following the instructions that we found in one of the vimeo videos titled "qk12". So far everything has been going well, however we just completed the step to Generate a pileup and now for some reason it is not allowing us to filter this pileup. The error message that is appearing says: History does not include a dataset of the required format / build.
If you could please let us know what we can do to make our pileup file compatible with this tool, or perhaps there is a step we need to add in between? That would be great.
Thank you so much,