Failed to attach elm project

[ericwern]

What happened?

Ive tried with both 5.0.0 and the 5.0.1-beta1

Relevant log output or stack trace

No response

Steps to reproduce

attach elm.json to a new project

IntelliJ IDE details (should contain the Elm plugin version and OS details)

WebStorm 2024.1.2
Build #WS-241.15989.105, built on April 23, 2024
Runtime version: 17.0.10+1-b1207.14 aarch64
VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o.
macOS 14.4.1
GC: G1 Young Generation, G1 Old Generation
Memory: 4096M
Cores: 10
Metal Rendering is ON
Registry:
ide.experimental.ui=true
Non-Bundled Plugins:
dev.turingcomplete.intellijdevelopertoolsplugins (4.2.0)
intellij-elm (5.0.1-beta1)
com.gafner.giv (2024.1.14)
com.intellij.ml.llm (241.15989.156)
com.github.copilot (1.5.2.5345)

[BenjaminDebeerst]

I can confirm / reproduce this behaviour for 5.0.0 and 5.0.1-beta1, although the latter actually has a fix for this problem: 3b06b0a.

When reproducing, I found that the Lamdera binary was configured as the literal string "null", which of course does not work in any case. Deleting the configured "null" entry for Lambdera fixed it for me. (Settings -> Languages and Framworks -> Elm)

[BenjaminDebeerst]

It seems to be a funky way of how Intellij migrates forward existing configurations though, because I could not reproduce this issue with a vanilla configuration of Intellij.

[ElaadF]

Thanks for the workaround @BenjaminDebeerst I was facing the same issue, I finally replace the parameter with /usr/local/bin/elm like mentionned here #809 (comment) and it works just fine.

Build #IC-241.14494.240, built on March 28, 2024
Runtime version: 17.0.10+8-b1207.12 amd64
VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o.
Linux 6.6.13+bpo-amd64
GC: G1 Young Generation, G1 Old Generation
Memory: 3848M
Cores: 12
Registry:
  ide.experimental.ui=true
  scala.erase.compiler.process.jdk.once=false
Non-Bundled Plugins:
  com.intellij.plugins.watcher (241.14494.150)
  intellij-elm (5.0.0)
  JettyRunner-GK (2.0.1)
  org.intellij.scala (2024.1.20)
Kotlin: 241.14494.240-IJ
Current Desktop: GNOME