# more mgcluster issues **URL:** \ **Category:** Commands in mothur\ **Created:** [June 4, 2010, 8:30pm UTC](https://forum.mothur.org/t/more-mgcluster-issues/239 "2010-06-04T20:30:10Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Kendra](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.mothur.org/kendra/32/112_2.png) [@Kendra](https://forum.mothur.org/u/Kendra)\ **Post date:** [June 4, 2010, 8:30pm UTC](https://forum.mothur.org/t/more-mgcluster-issues/239/1 "2010-06-04T20:30:10Z")
Hey Pat I figured out my issues getting mgcluster to run on my data so now have the list file. My next step was to read that in using the read.otu command, correct? I have multiple samples that I clustered so was trying to use group to generate the shared otu file. But I’m getting the following error. It seems to me that mothur is reading a space as a sequence name? I haven’t done anything to the list file and since it’s so huge I can’t open it with a text editor to see what’s wrong with the file. There weren’t any errors when I ran mgcluster. help! Kendra mothur \> read.otu(list=j\_LP\_HOT\_SI\_aa.fas.fn.list, group=j\_LP\_HOT\_SI\_aa.group, label=0.2-0.4-0.6) Error: Sequence '' was not found in the group file, please correct. ---
**Author:** ![westcott](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.mothur.org/westcott/32/18_2.png) [@westcott](https://forum.mothur.org/u/westcott)\ **Post date:** [June 7, 2010, 10:50am UTC](https://forum.mothur.org/t/more-mgcluster-issues/239/2 "2010-06-07T10:50:19Z")
Could you send your list and group file to [mothur.bugs@gmail.com](mailto:mothur.bugs@gmail.com)? ---
**Author:** ![Kendra](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.mothur.org/kendra/32/112_2.png) [@Kendra](https://forum.mothur.org/u/Kendra)\ **Post date:** [June 7, 2010, 11:38pm UTC](https://forum.mothur.org/t/more-mgcluster-issues/239/3 "2010-06-07T23:38:29Z")
I think I may have a bad selfblast. I’m repeating that and will send you the files if reblasting doesn’t fix the problem. thanks