plot failed: Traceback (most recent call last):
  File "/usr/local/bin/plotann.py", line 367, in <module>
    anns = get_annotations(plot.wcs, opt)
  File "/usr/local/bin/plotann.py", line 75, in get_annotations
    tra,tdec,I2 = match_kdtree_catalog(wcs, opt.t2cat)
  File "/usr/local/bin/plotann.py", line 28, in match_kdtree_catalog
    kd = tree_open(catfn)
  File "/usr/local/lib/python/astrometry/libkd/spherematch.py", line 392, in tree_open
    return spherematch_c.KdTree(fn)
FileNotFoundError: [Errno 2] No such file or directory: b'/data2/nova/tycho2.kd'
<br><pre></pre><br><pre>Traceback (most recent call last):
  File "/usr/local/bin/plotann.py", line 367, in <module>
    anns = get_annotations(plot.wcs, opt)
  File "/usr/local/bin/plotann.py", line 75, in get_annotations
    tra,tdec,I2 = match_kdtree_catalog(wcs, opt.t2cat)
  File "/usr/local/bin/plotann.py", line 28, in match_kdtree_catalog
    kd = tree_open(catfn)
  File "/usr/local/lib/python/astrometry/libkd/spherematch.py", line 392, in tree_open
    return spherematch_c.KdTree(fn)
FileNotFoundError: [Errno 2] No such file or directory: b'/data2/nova/tycho2.kd'
</pre>