Hi,

I’m quite new to Galaxy and Python, but I have near 25 years of experience at computing (development, databases, web development, systems…)

I’ve performed a local installation in order to learn Galaxy and it’s “internals”.

In order to test the installation, I’m reproducing the Galaxy screencast tutorials locally.

When reproducing the screencast named : “Finding Exons with the highest number of nucleotide polymorphisms”, at step 4 (grouping and counting).

I’m receiving the following error: “An error occurred running this job: Sorting input dataset resulted in error: 512: sort: multi-character tab `$\t'”.

Just to doublecheck, I’ve tried to just sort the dataset on column 4 (Name), and I’m receiving a quite similar error (“An error occurred running this job: sort: multi-character tab `$\t'”).

I’ve tried to locate the error source at the configuration/ source code files… but found nothing promising on filters/sorter.py nor stats/grouping.py.

Thus, I’m asking for a tip on where to look at.

Thanks in advance.

Jordi Rambla

Universitat de Barcelona