Heroku エラー

前提・実現したいこと

出てきているエラーの解決方法がわからないです
寮のメニューを教えてくれるTwitterbotを作ってherokuにpushしてherku run python ****** で実行したときにエラーが出ました

発生している問題・エラーメッセージ

Traceback (most recent call last):
  File "/app/.heroku/python/lib/python3.6/site-packages/pdf2image/pdf2image.py", line 182, in _page_count
    proc = Popen(["pdfinfo", pdf_path], stdout=PIPE, stderr=PIPE)
  File "/app/.heroku/python/lib/python3.6/subprocess.py", line 709, in __init__
    restore_signals, start_new_session)
  File "/app/.heroku/python/lib/python3.6/subprocess.py", line 1344, in _execute_child
    raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory: 'pdfinfo': 'pdfinfo'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "downlod.py", line 73, in <module>
    images = convert_from_path('test.pdf')
  File "/app/.heroku/python/lib/python3.6/site-packages/pdf2image/pdf2image.py", line 46, in convert_from_path
    page_count = _page_count(pdf_path, userpw)
  File "/app/.heroku/python/lib/python3.6/site-packages/pdf2image/pdf2image.py", line 186, in _page_count
    raise PDFInfoNotInstalledError('Unable to get page count. Is poppler installed and in PATH?')
pdf2image.exceptions.PDFInfoNotInstalledError: Unable to get page count. Is poppler installed and in PATH?

該当のソースコード

Python
import urllib.request
import os
import tweepy
from pdf2image import convert_from_path
from PIL import Image
from pytz import timezone
from datetime import datetime

map_x_front = [540,780,1023,1265,1510,1750,1993]
map_x_back = [775,1015,1259,1500,1745,1985,2228]
map_y_a_front = [428,790,1140]
map_y_a_back = [543,840,1190]
map_y_b_front = [615,907,1270]
map_y_b_back = [718,970,1330]

now = datetime.now(timezone('Asia/Tokyo'))
week = now.weekday()
now = str(now)
time = now[11:13]
date = now[8:10]
month = now[5:7]
year = now[0:4]
yera = int(year)
month = int(month)
time = int(time)
date = int(date)
print(now)
if time <= 7:
time_food = 0
elif time <= 12:
time_food=1
else:
time_food=2
if 0>= date - week:
month=month-1
if month-1 == 1 or month-1 == 3 or month -1 == 5 or month -1 == 7 or month -1 ==8 or month -1 == 10 or month-1 == 0:
url_date = date-week+31
elif month-1!=2:
url_date = date-week+30
else:
if year % 4 == 0 and year % 100 != 0:
url_date = date-week+29
elif year % 400 == 0:
url_date = date-week+29
else:
url_date = date-week+28
print(url_date)

if month>=10:
month_str=str(month)
else:
month_str = '0{0}'.format(str(month))

if url_date>=10:
date_str=str(url_date)
else:
date_str = '0{0}'.format(str(url_date))

print(month_str)
print(date_str)

url = 'http://www.tsuyama-ct.ac.jp/imgVer4/hokushinryou/menu/ryoumenu-H31{0}{1}.pdf'.format(month_str,date_str)
savename="test.pdf"
urllib.request.urlretrieve(url,savename)
print("adae")

images = convert_from_path('test.pdf')
print("afa")
images[0].save('test.png','png')
im = Image.open('test.png')
im_crop = im.crop((map_x_front[week],map_y_a_front[time_food],map_x_back[week],map_y_a_back[time_food]))
im_crop2 = im.crop((map_x_front[week],map_y_b_front[time_food],map_x_back[week],map_y_b_back[time_food]))
im_crop.save("test2.png",quality=95)
im_crop2.save("test3.png",quality=95)

im1 = Image.open('test2.png')
im2 = Image.open('test3.png')

dst = Image.new('RGB', (im1.width, im1.height + im2.height))

dst.paste(im1, (0, 0))
dst.paste(im2, (0, im1.height))
dst.save('test4.png')

message=""
print("保存しました")

試したこと

翻訳したりググったりしたのですが、分かりませんでした。
よろしくお願いしますm(_ _)m

Stan_Dma

2019/02/04 07:56 編集

The error messages read you should have poppler installed on heroku. Does it help you? https://qiita.com/ogaworks/items/88252309a7787f1034f5

sinozima

2019/02/04 09:44

bundle install のところで Your Gemfile has no gem server sources. If you need gems that are not already on your machine, add a line like this to your Gemfile: source 'https://rubygems.org' Could not find gem 'poppler (= 3.0.8) x64-mingw32' in any of the gem sources listed in your Gemfile. というエラーが出ます。これも翻訳やググったのですがよくわからなかったですよろしくお願いしますm(_ _)m

Stan_Dma

2019/02/04 10:54

An official document is usually reliable when you do not understand about things. https://github.com/Belval/pdf2image . This shows that poppler will have to be installed. It's not a gem but a package software.

Stan_Dma

2019/02/04 11:15 編集

Im not sure more than above. Sorry. The error messages give a lot of information and it shows that your Gemfile would be incorrect. But I am afraid you should not do another question on the first question.