To whom this may concern, I'm a PhD student at the Robert Koch Institute and I am trying to simulate reads using Mason. I have downloaded the .zip file and I see that I must apply the following steps svn co http://svn.mi.fu-berlin.de/seqan/trunk/seqan seqan-trunk cd seqan-trunk/build mkdir Release cd Release cmake -DCMAKE_BUILD_TYPE=Release .. make mason ./core/apps/mason/mason --help I also tried using the link http://trac.mi.fu-berlin.de/seqan/wiki/Tutorial/GettingStarted I cannot access either of the two links. Is there another way to install mason/ a tutorial? Second, I am trying to reproduce results of a paper and I see the paper uses Mason in two ways to produce Illumina reads. For example, I see " mason_simualtor --illumina -n 100 ...." and then in another part I see "masson illumina -n 100 ..." . what is the difference between these two commands? Many thanks in advance. Best, Elizabeth