borybar
Hi,
Everything was fine yesterday. I tried to turn my program today and I am getting this error when I am trying to run mix phx.server. I am not sure what’s happening. I will be greatfull for help.
** (Mix) Could not start application calorie: Calorie.Application.start(:normal, []) returned an error: shutdown: failed to start child: CalorieWeb.Endpoint
** (EXIT) shutdown: failed to start child: Phoenix.PubSub.PG2
** (EXIT) shutdown: failed to start child: Phoenix.PubSub.PG2Server
** (EXIT) an exception was raised:
** (UndefinedFunctionError) function :pg2.create/1 is undefined or private
(kernel 8.0.1) :pg2.create({:phx, Calorie.PubSub})
(phoenix_pubsub 1.1.2) lib/phoenix/pubsub/pg2_server.ex:43: Phoenix.PubSub.PG2Server.init/1
(stdlib 3.15.1) gen_server.erl:423: :gen_server.init_it/2
(stdlib 3.15.1) gen_server.erl:390: :gen_server.init_it/6
(stdlib 3.15.1) proc_lib.erl:226: :proc_lib.init_p_do_apply/3
Where Next?
Trending in Questions
Other Trending Topics
Latest Phoenix Threads
Latest on Elixir Forum
Sponsor Spotlight
Phoenix, LiveView, multimedia pipelines, distributed systems. 400 engineers, Elixir since 2017. Available for hire.
Categories:
Sub Categories:
Forums
Popular Tags
- #ecto
- #liveview
- #troubleshooting
- #learning-elixir
- #library
- #deployment
- #erlang
- #testing
- #genserver
- #mix
- #absinthe
- #remote-other
- #otp
- #plug
- #how-to-question
- #macros
- #postgres
- #elixirconf
- #channels
- #exunit
- #discussion
- #code-sync
- #podcasts
- #javascript
- #onsite
- #dialyzer
- #docker
- #authentication
- #umbrella
- #full-time-contract
- #podcasts-by-brainlid
- #ai
- #ecto-query
- #elixirconf-us
- #blog-post
- #elixir-ls
- #phoenix_html
- #iex
- #graphql
- #genstage
- #websockets
- #supervisor
- #advent-of-code
- #distillery
- #processes
- #elixirconf-eu
- #api
- #forms
- #metaprogramming
- #hex
Our Sponsors
Build Elixir applications with speed and confidence.
Supporting innovation across the BEAM ecosystem.
We build reliable cloud platforms for business-critical systems.
Catch errors, track performance, monitor hosts and more.
Elixir, Erlang & BEAM conferences from Code Sync - join us in 2026!
Bringing learning, work and compliance together since 1987.
Producing high quality Elixir screencasts since 2017.
The deployment platform built for Elixir: PaaS ease, VPS control.
The team behind Membrane, Popcorn, LiveDebugger. Available for hire.
Courses that'll move you from confusion to "Aha, now I get it!"
Showing Posts 1 to 5- Show Best Posts
- Show All (oldest first)
- Show All (newest first)
hubertlepicki
I feel like I have been summoned with the word “calorie” ;).
but answering your question, you need to either downgrade to OTP < 24, or update Phoenix PubSub to not depend on pg2 as it was removed from Erlang. Check out this thread:
borybar
Thanks for reply!
I did update my Phoenix PubSub to “2.0.0” version however it is still receiving same error. I did change my
mix.exs, runmix deps.update -- allandmix deps. Am I missing something?P.S: I am wondering why do you feel like you were summoned my the word “calorie”?
borybar
I managed to resolve this issue. I also had to update my phoenix. Thanks for help!
hubertlepicki
I am obsessed with nutrition
dimitarvp
Now I gotta ask do you give consultations