Elixir postgrex error - Could not start application postgrex: could not find application file: postgrex.app



If you get postgrex error above, please open a file called "mix.exs" and look for application and remove postgrex from your list as shown below.


# Type `mix help compile.app` for more information.
def application do
[mod: {HelpOn, []},
applications: [:phoenix, :phoenix_pubsub, :phoenix_html, :cowboy, :logger, :gettext,
:phoenix_ecto, postgrex]] <-- div="" error="" here="">
end

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If you're getting  exception when trying to assigned key to a symmetric key and getting error message below :- The specified initialization vector (IV) does not match the block size for this algorithm And your code probably look like something below :- Then you need to go into debug mode and start looking into the supported size for IV as shown in diagram below :- As you can see, IV is 16 bytes, so you need to provide 16 bytes. The same goes for Key field too, if you're adding anything to it. As long as you provide a valid key size, then we're good and you're code will be ready.
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