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LattE problem: Executable 'count' not found on PATH.

Hello, I'm doing some polytope computations and the above problem appears as soon as the polytopes become too big. For example, I'm using:

from sage.interfaces.latte import *
p=Polyhedron(vertices=[(1/2,0),(0,1/3),(1,1)], backend='normaliz')
FeatureNotPresentError                    Traceback (most recent call last)
<ipython-input-6-ca4453575b9a> in <module>()
----> 1 q.integral_points_count()

/usr/lib/python2.7/site-packages/sage/geometry/polyhedron/base_QQ.pyc in integral_points_count(self, verbose, use_Hrepresentation, explicit_enumeration_threshold, preprocess, **kwds)
    216                 cdd=True,
    217                 verbose=verbose,
--> 218                 **kwds)

/usr/lib/python2.7/site-packages/sage/interfaces/latte.pyc in count(arg, ehrhart_polynomial, multivariate_generating_function, raw_output, verbose, **kwds)
    112     """
    113     # Check that LattE is present
--> 114     Latte().require()
    116     args = ['latte-count']

/usr/lib/python2.7/site-packages/sage/features/__init__.pyc in require(self)
    156         presence = self.is_present()
    157         if not presence:

  --> 158             raise FeatureNotPresentError(self, presence.reason, presence.resolution)
        160     def __repr__(self):
FeatureNotPresentError: LattE is not available.
Executable 'count' not found on PATH.
To install latte-count you can try to run 'sage -i latte_int'.
Further installation instructions might be available at [DELETED LINK].

Any help to resolve the issue would be greatly appreaciated!