Error when running svfinder with work_on_collection:

[HMFAN]

Hello! I encountered the following error when running svfinder with work_on_collection:
ConstantInputWarning: An input array is constant; the correlation coefficient is not defined.
return 1 - ((spearmanr(v, u)[0] + 1) / 2)
Traceback (most recent call last):
File "18.sgvFinder_4.SGVFinder_test.py", line 6, in
vsgv, dsgv = work_on_collection(
File "/miniconda3/envs/sgv-finder/lib/python3.10/site-packages/SGVFinder2/svfinder.py", line 229, in work_on_collection
sgvregions, normdf = find_sgvs(bacdf, max_spacing, vsgv_dense_perc, bacname, deldf,
File "/miniconda3/envs/sgv-finder/lib/python3.10/site-packages/SGVFinder2/svfinder.py", line 321, in find_sgvs
sclusters = cluster_stretches(stretches, nodeldf, _spearman_dissim, dissim_thresh, 'complete')
File "/miniconda3/envs/sgv-finder/lib/python3.10/site-packages/SGVFinder2/svfinder.py", line 429, in cluster_stretches
Z = linkage(distance, method=linkage_method)
File "/miniconda3/envs/sgv-finder/lib/python3.10/site-packages/scipy/cluster/hierarchy.py", line 1030, in linkage
raise ValueError("The condensed distance matrix must contain only finite values.")
My input files are .smp files from 9 samples.

I would greatly appreciate your help in resolving this issue. Below is my code:
DATABASE = 'sgvDB'
from SGVFinder2 import work_on_collection

vsgv, dsgv = work_on_collection(
samp_to_map='test_sgvfinder/',
max_spacing=10,
min_samp_cutoff=2,
delsdetectthresh=0.25,
real_del_thresh=0.95,
dels_cooc_thresh=0.25,
vsgv_dissim_thresh=0.125,
vsgv_clip_quantile=0.02,
vsgv_fit_interval=0.95,
vsgv_fit_method='betaprime',
x_coverage=0.01,
rate_param=10,
vsgv_dense_perc=85,
browser_path=None,
taxonomypath=DATABASE+'.taxonomy.df',
genepospath=DATABASE+'genepos.df',
frames_path=None
)
vsgv.to_csv('vsgv_example.csv')
dsgv.to_csv("dsgv_example.csv")
Thank you very much for your assistance.

[BowenJin0105]

I think #10 (comment) should help resolve the issue.