Hello!, I'm having problems with Cuffdiff analysis of gene Diff. expression. The code is:

cuffdiff -o (dir_output) --library-type=fr-firststrand -b ./dir/dir/file.fa -L Mock,Treated -u ./dir/file_gene_models.gtf

and followed by the inputs (with replicates).

In the terminal, the following is printed:

*Warning: Could not connect to update server to verify current version. Please check at the Cufflinks website (http://cufflinks.cbcb.umd.edu).
[11:19:22] Loading reference annotation and sequence.
[11:19:23] Inspecting maps and determining fragment length distributions.
Segmentation fault: 11*

As a result, I get all expected files but with NO content (0 bytes).

Has anyone encountered such problem? I have a macbookpro with 8gb RAM and close to 140gb free space.

Thanks!