Heroku giving 500 error with little information + Internal Server Error

Question

Heroku showing this message on the page:

"internal server error"

This error is showing in console:

GET https://frozen-gorge-82417.herokuapp.com/auth/github/callback?error=redirect_uri_mismatch&error_description=The+redirect_uri+MUST+match+the+registered+callback+URL+for+this+application.&error_uri=https%3A%2F%2Fdeveloper.github.com%2Fv3%2Foauth%2F%23redirect-uri-mismatch 500 (Internal Server Error)

Drubbing

Answer 1

Check the logs of your Heroku application to see more details. You can stream the log using the Heroku CLI after logging in:

heroku logs -t

Alternatively, you can view the logs on the app dashboard.

Keese

Thanks, after using that now i know if i forgot to adding Environtment Variable to Heroku – Gullet

Answer 2

Apparently, I was being displayed the same error but after 3-4 minutes, the web application finally got loaded on heroku. Most probably it's caused due to setting up of webpage on the heroku's server.

Reprobative

There are many possible reasons you were seeing these 5XX errors, but most likely in this case you were either getting H81 (Blank app) or H14 (No web dynos running), both of which should result in HTTP 503 responses. The way to know for sure is to check the logs in either the app dashboard or by using e.g. heroku logs -t. A full list of detailed error code descriptions is available in the error codes help article: devcenter.heroku.com/articles/error-codes – Keese

Answer 3

Do you use database ? if yes, don't forget to add database add-ons in resource of your heroku project and create table that you need in database.

Sis

Welcome to stack overflow. Consider posting this as a comment instead of an answer. After gaining certain number of reputation points you will be able to post comments to other questions/answer. – Neron

Thank you Rahul. Just like you said, i haven't enough reputation points to make a comments. – Sis

Answer 4

I was facing the same issue with this. Locally the app works but when I pushed it to heroku I was getting an internal server error. Then I realized that the path was rather not known.

assume this is the url for the app on heroku, https://myapp.herokuapp.com

this url was the error, because the route did not exit not looked like any of the routes I had. My route start with or my base url was, myapp/

https://myapp.herokuapp.com/myapp/ worked for me.

I was running http://127.0.0.1:5000/myapp/ locally which should be the same as https://myapp.herokuapp.com/myapp/ on heroku

Rombert

Answer 5

Check response redirect in your control and in file name view (html) , uppercase and lowercase characters very influential

Dampproof

Answer 6

I removed the .env file from my .gitignore file while pushing my code to Heroku. It is worked for me.

Manikin

Answer 7

If your application has a database (as it should) make sure to makemigrations and perform migrate. You can do this using Heroku CLI from your Heroku App dashboard.

To make migrations ==> python manage.py makemigrations

To migrate ==> python manage.py migrate

If the above suggestions do not fix the (500) problem, go to your environment variable and change its value to True. Then return to your application to read the error message. Your cue will definitely be there.

Cheers!

Blackfish

Answer 8

I was stuck with the same problem. For me the problem was in my_project/wsgi.py . I had setup 3 settings file under my_project/my_project/settings folder and I had configured the necessary configuration under manage.py to detect the setting file but forgot the configuration under my_project/wsgi.py . So resolving this solved the problem for me.

Approximate

Answer 9

Add the APP_KEY from the terminal as:

heroku config:set APP_KEY=[App_key] -a project-name 

this worked for me.

Gantline

Answer 10

I know I'm late, but in my case it was also just adding the KEY that I was loading locally from .env to the heroku server as an environment variable.

You can simply do it like this:

heroku config:set SECRET_KEY_NAME="YOUR_SECRET_KEY_VALUE"

For example, it could be something like this:

heroku config:set API_KEY="probablysomestringofcharacters"

Center

Answer 11

I fixed my issue by removing .env file from my gitignore.

Ironbark

BE CAREFUL! Any projects' .env SHOULD be in gitignore; you want this for security reasons. Your environment variables (the contents of the .env file) should be protected and separate from your code. SOLUTION: You should manually input the env variables into your config settings in your Heroku dashboard. This is the normal and correct thing to do. – Bullish