Windows setup thorw an error

[yeshan333]

Elixir and Erlang/OTP versions

• Erlang/OTP version is 26.2.5, install by vfox-erlang
• Elixir windows installer: elixir-otp-26.exe

Operating system

windows

Current behavior

when I click elixir-otp-26.exe to install Elixir. then throw an exception:

Found existing Erlang/OTP installation at Elixir Setup Found existing Erlang/OTP installation at C:\Userslyeshan333\.version-foxicachelerlanglv-25.3.2.12lerlang-25.3.2.12\release but checking it exited with error:

Expected behavior

No errors are thrown during installation.

[josevalim]

@wojtekmach, which check do we execute here? Maybe we can add the check we run in the error message?

[wojtekmach]

The error is raised here: https://github.com/elixir-lang/elixir/blob/v1.16.2/lib/elixir/scripts/windows_installer/installer.nsi#L119

based on this check:

https://github.com/elixir-lang/elixir/blob/v1.16.2/lib/elixir/scripts/windows_installer/installer.nsi#L94:L96

It looks like you maybe have OTP 25 installed too so consider uninstalling it first. Though the installer should gracefully handle other installation.

[josevalim]

@yeshan333 can you try executing the commands above in your Erlang installation? Does it work? What does it return?

[yeshan333]

After I uninstalled OTP 25, the installer can work normally.

However, if I have multiple OTP versions installed on my machine at the same time, it seems that Elixir's installer cannot find them well.

And OTP 25 installation path exists in the environment variable:

@josevalim @wojtekmach

[wojtekmach]

Thank you for checking, this is really helpful. What is the installer version, i.e. Elixir version, you used?

[yeshan333]

Thank you for checking, this is really helpful. What is the installer version, i.e. Elixir version, you used?

installer version is elixir-otp-25.exe.

[wojtekmach]

That's not enough information, which release (https://github.com/elixir-lang/elixir/releases) did you download the installer from?

[yeshan333]

That's not enough information, which release (https://github.com/elixir-lang/elixir/releases) did you download the installer from?

this: https://github.com/elixir-lang/elixir/releases/download/v1.16.3/elixir-otp-25.exe

[simonmcconnell]

@yeshan333 in the meantime you can handle multiple versions using scoop

scoop install erlang@25.3.2.12
scoop install elixir@1.16.2-otp-25
scoop install elixir@1.16.3-otp-25 # becomes the current version
scoop reset elixir@1.16.2-otp-25 # change current version