Geo-Django on Heroku throwing "No such file": libjasper.so.1

Heroku-16, Django==1.11.8  

Any `heroku run python manage.py x` command will throw:  

OSError: libjasper.so.1: cannot open shared object file: No such file or directory

According to this issue here: https://github.com/cyberdelia/heroku-geo-buildpack/issues/43, heroku-16 is without libjasper at runtime.  

It was apparently solved by user @dschep here: https://github.com/TrailStash/heroku-geo-buildpack/commit/5ae45e57353aab6a9fb2f0443e9ea0974d8b29ba  

However for me and others, the same issue remains even when using the forked buildpack. Libjasper is nowhere to be found.   

Anybody push through this?  

some personal settings:  

import dj_database_url
from os import environ

DATABASES['default'] =  dj_database_url.config()
DATABASES['default']['ENGINE'] = 'django.contrib.gis.db.backends.postgis'

GEOS_LIBRARY_PATH = "{}/libgeos_c.so".format(environ.get('GEOS_LIBRARY_PATH'))
GDAL_LIBRARY_PATH = "{}/libgdal.so".format(environ.get('GDAL_LIBRARY_PATH'))
PROJ4_LIBRARY_PATH = "{}/libproj.so".format(environ.get('PROJ4_LIBRARY_PATH'))

A full traceback in case:  

Running python manage.py migrate on ⬢ paup... up, run.5502 (Free)

/app/.heroku/python/lib/python3.6/site-packages/daphne/server.py:12: UserWarning: Something has already installed a non-asyncio Twisted reactor. Attempting to uninstall it; you can fix this warning by importing daphne.server early in your codebase or finding the package that imports Twisted and importing it later on.

  UserWarning,

Traceback (most recent call last):

  File "manage.py", line 29, in <module>

    execute_from_command_line(sys.argv)

  File "/app/.heroku/python/lib/python3.6/site-packages/django/core/management/__init__.py", line 364, in execute_from_command_line

    utility.execute()

  File "/app/.heroku/python/lib/python3.6/site-packages/django/core/management/__init__.py", line 338, in execute

    django.setup()

  File "/app/.heroku/python/lib/python3.6/site-packages/django/__init__.py", line 27, in setup

    apps.populate(settings.INSTALLED_APPS)

  File "/app/.heroku/python/lib/python3.6/site-packages/django/apps/registry.py", line 108, in populate

    app_config.import_models()

  File "/app/.heroku/python/lib/python3.6/site-packages/django/apps/config.py", line 202, in import_models

    self.models_module = import_module(models_module_name)

  File "/app/.heroku/python/lib/python3.6/importlib/__init__.py", line 126, in import_module

    return _bootstrap._gcd_import(name[level:], package, level)

  File "<frozen importlib._bootstrap>", line 978, in _gcd_import

  File "<frozen importlib._bootstrap>", line 961, in _find_and_load

  File "<frozen importlib._bootstrap>", line 950, in _find_and_load_unlocked

  File "<frozen importlib._bootstrap>", line 655, in _load_unlocked

  File "<frozen importlib._bootstrap_external>", line 678, in exec_module

  File "<frozen importlib._bootstrap>", line 205, in _call_with_frames_removed

  File "/app/.heroku/python/lib/python3.6/site-packages/django/contrib/auth/models.py", line 4, in <module>

    from django.contrib.auth.base_user import AbstractBaseUser, BaseUserManager

  File "/app/.heroku/python/lib/python3.6/site-packages/django/contrib/auth/base_user.py", line 52, in <module>

    class AbstractBaseUser(models.Model):

  File "/app/.heroku/python/lib/python3.6/site-packages/django/db/models/base.py", line 124, in __new__

    new_class.add_to_class('_meta', Options(meta, app_label))

  File "/app/.heroku/python/lib/python3.6/site-packages/django/db/models/base.py", line 325, in add_to_class

    value.contribute_to_class(cls, name)

  File "/app/.heroku/python/lib/python3.6/site-packages/django/db/models/options.py", line 214, in contribute_to_class

    self.db_table = truncate_name(self.db_table, connection.ops.max_name_length())

  File "/app/.heroku/python/lib/python3.6/site-packages/django/db/__init__.py", line 33, in __getattr__

    return getattr(connections[DEFAULT_DB_ALIAS], item)

  File "/app/.heroku/python/lib/python3.6/site-packages/django/db/utils.py", line 211, in __getitem__

    backend = load_backend(db['ENGINE'])

  File "/app/.heroku/python/lib/python3.6/site-packages/django/db/utils.py", line 115, in load_backend

    return import_module('%s.base' % backend_name)

  File "/app/.heroku/python/lib/python3.6/importlib/__init__.py", line 126, in import_module

    return _bootstrap._gcd_import(name[level:], package, level)

  File "/app/.heroku/python/lib/python3.6/site-packages/django/contrib/gis/db/backends/postgis/base.py", line 6, in <module>

    from .features import DatabaseFeatures

  File "/app/.heroku/python/lib/python3.6/site-packages/django/contrib/gis/db/backends/postgis/features.py", line 1, in <module>

    from django.contrib.gis.db.backends.base.features import BaseSpatialFeatures

  File "/app/.heroku/python/lib/python3.6/site-packages/django/contrib/gis/db/backends/base/features.py", line 4, in <module>

    from django.contrib.gis.db.models import aggregates

  File "/app/.heroku/python/lib/python3.6/site-packages/django/contrib/gis/db/models/__init__.py", line 3, in <module>

    from django.contrib.gis.db.models.aggregates import *  # NOQA

  File "/app/.heroku/python/lib/python3.6/site-packages/django/contrib/gis/db/models/aggregates.py", line 1, in <module>

    from django.contrib.gis.db.models.fields import ExtentField

  File "/app/.heroku/python/lib/python3.6/site-packages/django/contrib/gis/db/models/fields.py", line 3, in <module>

    from django.contrib.gis import forms, gdal

  File "/app/.heroku/python/lib/python3.6/site-packages/django/contrib/gis/forms/__init__.py", line 3, in <module>

    from .fields import (  # NOQA

  File "/app/.heroku/python/lib/python3.6/site-packages/django/contrib/gis/forms/fields.py", line 4, in <module>

    from django.contrib.gis.geos import GEOSException, GEOSGeometry

  File "/app/.heroku/python/lib/python3.6/site-packages/django/contrib/gis/geos/__init__.py", line 5, in <module>

    from .collections import (  # NOQA

  File "/app/.heroku/python/lib/python3.6/site-packages/django/contrib/gis/geos/collections.py", line 11, in <module>

    from django.contrib.gis.geos.geometry import GEOSGeometry, LinearGeometryMixin

  File "/app/.heroku/python/lib/python3.6/site-packages/django/contrib/gis/geos/geometry.py", line 11, in <module>

    from django.contrib.gis import gdal

  File "/app/.heroku/python/lib/python3.6/site-packages/django/contrib/gis/gdal/__init__.py", line 28, in <module>

    from django.contrib.gis.gdal.datasource import DataSource

  File "/app/.heroku/python/lib/python3.6/site-packages/django/contrib/gis/gdal/datasource.py", line 39, in <module>

    from django.contrib.gis.gdal.driver import Driver

  File "/app/.heroku/python/lib/python3.6/site-packages/django/contrib/gis/gdal/driver.py", line 5, in <module>

    from django.contrib.gis.gdal.prototypes import ds as vcapi, raster as rcapi

  File "/app/.heroku/python/lib/python3.6/site-packages/django/contrib/gis/gdal/prototypes/ds.py", line 9, in <module>

    from django.contrib.gis.gdal.libgdal import GDAL_VERSION, lgdal

  File "/app/.heroku/python/lib/python3.6/site-packages/django/contrib/gis/gdal/libgdal.py", line 49, in <module>

    lgdal = CDLL(lib_path)

  File "/app/.heroku/python/lib/python3.6/ctypes/__init__.py", line 348, in __init__

    self._handle = _dlopen(self._name, mode)

OSError: libjasper.so.1: cannot open shared object file: No such file or directory

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