CODEWITHSUNDEEP
elixirphoenix-framework
Paulo Janeiro
Paulo Janeiro

Reputation: 3221

Error installing Addict - conflicting requirements on Ecto

I was trying to install Addict, so I added to mix.ex its latest version (as in Hex):

{:addict, ">= 0.1.0"}

Then, I have run mix reps.get and got an error:

Looking up alternatives for conflicting requirements on ecto

From mix.lock: 1.0.0
  From addict v0.1.0: ~> 0.9
** (Mix) Hex dependency resolution failed, relax the version requirements or unlock dependencies

I tried to do that in mix.lock but wasn't able to overcome that because this error appeared:

(Mix) Unknown package version ecto v0.0.9 in lockfile

What's the best way to overcome this?

Upvotes: 3

Views: 795

Answers (1)

Gazler
Gazler

Reputation: 84180

You can set a dependency to override with the override flag:

defp deps do
  ...
   {:ecto, "~> 1.0.0", override: true},
   {:addict, "~> 0.1.0"},
  ...
end

From the docs:

:override - if set to true the dependency will override any other definitions of itself by other dependencies

This means that even though addict sets the version to 0.9.0 - the 1.0.0 version will be used. This could cause issues if addict is using a function in Ecto that is now deprecated.

Upvotes: 4

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