/opt/conda/envs/nfcore-chipseq-1.0dev/lib/python2.7/site-packages/matplotlib/cbook/deprecation.py:107: MatplotlibDeprecationWarning:
  
  Passing one of 'on', 'true', 'off', 'false' as a boolean is deprecated; use an actual boolean (True/False) instead.
  
  /opt/conda/envs/nfcore-chipseq-1.0dev/lib/python2.7/site-packages/matplotlib/cbook/deprecation.py:107: MatplotlibDeprecationWarning:
  
  Passing one of 'on', 'true', 'off', 'false' as a boolean is deprecated; use an actual boolean (True/False) instead.
  
  Traceback (most recent call last):
    File "/opt/conda/envs/nfcore-chipseq-1.0dev/bin/plotPCA", line 11, in <module>
      main(args)
    File "/opt/conda/envs/nfcore-chipseq-1.0dev/lib/python2.7/site-packages/deeptools/plotPCA.py", line 176, in main
      cols=args.colors)
    File "/opt/conda/envs/nfcore-chipseq-1.0dev/lib/python2.7/site-packages/deeptools/correlation.py", line 688, in plot_pca
      plt.tight_layout()
    File "/opt/conda/envs/nfcore-chipseq-1.0dev/lib/python2.7/site-packages/matplotlib/pyplot.py", line 1366, in tight_layout
      fig.tight_layout(pad=pad, h_pad=h_pad, w_pad=w_pad, rect=rect)
    File "/opt/conda/envs/nfcore-chipseq-1.0dev/lib/python2.7/site-packages/matplotlib/figure.py", line 2276, in tight_layout
      self.subplots_adjust(**kwargs)
    File "/opt/conda/envs/nfcore-chipseq-1.0dev/lib/python2.7/site-packages/matplotlib/figure.py", line 2088, in subplots_adjust
      self.subplotpars.update(*args, **kwargs)
    File "/opt/conda/envs/nfcore-chipseq-1.0dev/lib/python2.7/site-packages/matplotlib/figure.py", line 241, in update
      raise ValueError('left cannot be >= right')
  ValueError: left cannot be >= right