CosmoCoffee

Hello
i'm doing nothing new with getdist (apart from using the new version embedded in the latest release of cosmomc). This is the error i'm getting. How can i get rid of it?

chains/art1_1.txt
chains/art1_2.txt
chains/art1_3.txt
chains/art1_4.txt
chains/art1_5.txt
chains/art1_6.txt
chains/art1_7.txt
chains/art1_8.txt
chains/art1_9.txt
chains/art1_10.txt
chains/art1_11.txt
chains/art1_12.txt
Number of chains used = 12
var(mean)/mean(var), remaining chains, worst e-value: R-1 = 0.42052
RL: Not enough samples to estimate convergence stats
using 11076 rows, 48 parameters; mean weight 2.20783676417, tot weight 24454.0
Approx indep samples (N/corr length): 585.0
Equiv number of single samples (sum w)/max(w): 1063.0
Effective number of weighted samples (sum w)^2/sum(w^2): 6731
Best fit sample -log(Like) = 5632.021000
Ln(mean 1/like) = 5645.946746
mean(-Ln(like)) = 5639.123217
-Ln(mean like) = 5636.427736
Traceback (most recent call last):
File "/home/tronconi/anaconda/bin/GetDist.py", line 4, in <module>
__import__('pkg_resources').run_script('GetDist==0.2.6', 'GetDist.py')
File "/home/tronconi/anaconda/lib/python2.7/site-packages/pkg_resources/__init__.py", line 698, in run_script
self.require(requires)[0].run_script(script_name, ns)
File "/home/tronconi/anaconda/lib/python2.7/site-packages/pkg_resources/__init__.py", line 1616, in run_script
exec(code, namespace, namespace)
File "/home/tronconi/anaconda/lib/python2.7/site-packages/GetDist-0.2.6-py2.7.egg/EGG-INFO/scripts/GetDist.py", line 357, in <module>
main(args)
File "/home/tronconi/anaconda/lib/python2.7/site-packages/GetDist-0.2.6-py2.7.egg/EGG-INFO/scripts/GetDist.py", line 194, in main
mc._setDensitiesandMarge1D(writeDataToFile=not no_plots and plot_data_dir, meanlikes=plot_meanlikes)
File "/home/tronconi/anaconda/lib/python2.7/site-packages/GetDist-0.2.6-py2.7.egg/getdist/mcsamples.py", line 2098, in _setDensitiesandMarge1D
meanlikes=meanlikes)
File "/home/tronconi/anaconda/lib/python2.7/site-packages/GetDist-0.2.6-py2.7.egg/getdist/mcsamples.py", line 1266, in get1DDensityGridData
if paramrange == 0: raise MCSamplesError('Parameter range is zero: ' + par.name)
getdist.mcsamples.MCSamplesError: Parameter range is zero: kd

I don't know, but i'd check what's going on with parameter "'kd" in your output chain files (they don't look well converged, maybe parameters are not moving).