pojiro
I’d like to make sample data and some test which uses DateTime with timezone.
I don’t know how to import Tzdata module into elixir script, like seeds.exs or test script.
Now I got a below message
** (UndefinedFunctionError)
function Tzdata.TimeZoneDatabase.time_zone_periods_from_wall_datetime/2
is undefined (module Tzdata.TimeZoneDatabase is not available)
Could you tell me how to achieve it?
Thanks.
Where Next?
Trending in Questions
Other Trending Topics
Latest Phoenix Threads
Latest on Elixir Forum
Sponsor Spotlight
We build reliable cloud platforms for business-critical systems.
Categories:
Sub Categories:
Forums
Popular Tags
- #ecto
- #liveview
- #troubleshooting
- #learning-elixir
- #deployment
- #library
- #erlang
- #testing
- #genserver
- #mix
- #absinthe
- #remote-other
- #otp
- #plug
- #how-to-question
- #macros
- #postgres
- #elixirconf
- #channels
- #exunit
- #discussion
- #code-sync
- #javascript
- #podcasts
- #onsite
- #dialyzer
- #docker
- #authentication
- #umbrella
- #full-time-contract
- #podcasts-by-brainlid
- #ecto-query
- #blog-post
- #elixir-ls
- #ai
- #elixirconf-us
- #phoenix_html
- #iex
- #graphql
- #genstage
- #websockets
- #supervisor
- #advent-of-code
- #distillery
- #processes
- #api
- #forms
- #hex
- #security
- #metaprogramming
Our Sponsors
Supporting innovation across the BEAM ecosystem.
We build reliable cloud platforms for business-critical systems.
Catch errors, track performance, monitor hosts and more.
Error tracking, logs, uptime, and Just Enough APM. Built for developers.
Elixir, Erlang & BEAM conferences from Code Sync - join us in 2026!
Master modern tools, write cleaner code, and tackle real-world challenges.
Bringing learning, work and compliance together since 1987.
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 2- Show Best Posts
- Show All (oldest first)
- Show All (newest first)
NobbZ
If you have it directly or indirectly in your
deps, it should be available when you domix testormix run.Can you provide a minimal example project that shows your problem?
pojiro
@NobbZ thanks for your replay.
Your comment helped me.
I found my mistake. I wrote tzdata in “umbrella project” deps. Now I move it to apps deps and it works.
Thank you!!