nik2img.py error

gistfile1.txt

nik2img.py ~/mapnik-stylesheets/osm.xml ~/Desktop/test2.png -b -13451764 4205643 -13450743 4206551
/usr/local/lib/python2.7/site-packages/mapnik2/__init__.py:27: DeprecationWarning:  mapnik2 module has been deprecated,
        please use 'import mapnik' 
  warnings.warn(msg, DeprecationWarning)
Traceback (most recent call last):
  File "/usr/local/share/python/nik2img.py", line 5, in <module>
    pkg_resources.run_script('nik2img==0.8.0', 'nik2img.py')
  File "/usr/local/lib/python2.7/site-packages/pkg_resources.py", line 499, in run_script
    self.require(requires)[0].run_script(script_name, ns)
  File "/usr/local/lib/python2.7/site-packages/pkg_resources.py", line 1239, in run_script
    execfile(script_filename, namespace, namespace)
  File "/usr/local/lib/python2.7/site-packages/nik2img-0.8.0-py2.7.egg/EGG-INFO/scripts/nik2img.py", line 238, in <module>
    main()
  File "/usr/local/lib/python2.7/site-packages/nik2img-0.8.0-py2.7.egg/EGG-INFO/scripts/nik2img.py", line 228, in main
    nik_map = ComposeDebug(mapfile,**options.__dict__)
  File "/usr/local/lib/python2.7/site-packages/nik2img-0.8.0-py2.7.egg/mapnik_utils/composer.py", line 263, in __init__
    Compose.__init__(self,mapfile,**kwargs)
  File "/usr/local/lib/python2.7/site-packages/nik2img-0.8.0-py2.7.egg/mapnik_utils/composer.py", line 69, in __init__
    self.build()
  File "/usr/local/lib/python2.7/site-packages/nik2img-0.8.0-py2.7.egg/mapnik_utils/composer.py", line 280, in build
    builder = super(ComposeDebug,self).build()
  File "/usr/local/lib/python2.7/site-packages/nik2img-0.8.0-py2.7.egg/mapnik_utils/composer.py", line 179, in build
    self.map.zoom_to_box(env.forward(from_prj,to_prj))
  File "/usr/local/lib/python2.7/site-packages/nik2img-0.8.0-py2.7.egg/mapnik_utils/metaclass_injectors.py", line 236, in forward
    return trans.forward(self)
RuntimeError: Failed to forward project box2d(-13451764,4205643,-13450743,4206551) from +proj=latlong +datum=WGS84 to: +proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +no_defs +over

the -b or --bbox assumes long/lat coords, but it appears you've passed mercator coords. So try the same extent but with the -e or --projected-extent flag.

yup. -e is what i needed. Thank you so much!