Lefse Error in (function (file = "", n = NULL, text = NULL, prompt = "?", keep.source = getOption("keep.source"),

I have been doing Lefse analysis using the exactly same format for all the files however all of a sudden i am encountering an error.

Tool execution generated the following error message:
/galaxy_venv/local/lib/python2.7/site-packages/rpy2/rinterface/init.py:185: RRuntimeWarning: Error in (function (file = “”, n = NULL, text = NULL, prompt = “?”, keep.source = getOption(“keep.source”), :
:1:435: unexpected input
1: bacteriumacnes + Haemophilusparahaemolyticus + Selenomonassp_oralcloneGI064 + Romboutsiailealis + Porphyromonassp_oralcloneCW034 + Stomatobaculumlongum + Solobacteriummoorei + unculturedPrevot
^

warnings.warn(x, RRuntimeWarning)
Traceback (most recent call last):
File “/shed_tools/testtoolshed.g2.bx.psu.edu/repos/george-weingart/lefse/a6284ef17bf3/lefse/run_lefse.py”, line 89, in
if params[‘rank_tec’] == ‘lda’: lda_res,lda_res_th = test_lda_r(cls,feats,class_sl,params[‘n_boots’],params[‘f_boots’],params[‘lda_abs_th’],0.0000000001,params[‘nlogs’])
File “/export/shed_tools/testtoolshed.g2.bx.psu.edu/repos/george-weingart/lefse/a6284ef17bf3/lefse/lefse.py”, line 189, in test_lda_r
z = robjects.r(‘z <- suppressWarnings(lda(as.formula(’+f+’),data=sub_d,tol=’+str(tol_min)+’))’)
File “/galaxy_venv/local/lib/python2.7/site-packages/rpy2/robjects/init.py”, line 358, in call
p = _rparse(text=StrSexpVector((string,)))
rpy2.rinterface.RRuntimeError: Error in (function (file = “”, n = NULL, text = NULL, prompt = “?”, keep.source = getOption(“keep.source”), :
:1:435: unexpected input
1: bacteriumacnes + Haemophilusparahaemolyticus + Selenomonassp_oralcloneGI064 + Romboutsiailealis + Porphyromonassp_oralcloneCW034 + Stomatobaculumlongum + Solobacteriummoorei + unculturedPrevot
^

The tool produced the following additional output:
Number of significantly discriminative features: 32 ( 32 ) before internal wilcoxon

I am not sure how to troubleshoot this problem. Please help!

hello, have you solved this problem? I’ve met this problem either, and want to know the solution, thank you!!

after losts of debug processes, I finally found the reason. If your txt including names like “[abc]_a”, and this bacteria met the LDA effect criterion, it will end with bug. Way to solve this is to delete “[]” and then everything is ok.