Dependencies from Gradle build not working

[ramon54321]

Hello,
I have a minimal setup as follows:

• nvim-metals
• gradle init (scala)

Everything seems to work fine regarding autocomplete and general LSP features, however, when I add a dependency to my build.gradle.kts, the dependency is not recognized by metals, what could be the issue?

If I run ./gradlew run, it compiles and runs just fine, so it is a metals/lsp issue.

In case it is of value here are some things I have observed:

1. When I goto definition on a built in, such as java.util.Data, I get a popup to select between 2 options, but they have the same file path.

2. The .bsp, .metals and .scala-build directories are under ./app/src/main/scala/org/example/, and NOT the project root. Is this normal? (NOTE: these directories are not visible in the project structure below, but they do exist)

Project Structure

.
├── app
│   ├── build
│   │   ├── classes
│   │   │   └── scala
│   │   │       └── main
│   │   │           └── org
│   │   │               └── example
│   │   │                   ├── App$.class
│   │   │                   └── App.class
│   │   ├── generated
│   │   │   └── sources
│   │   │       └── annotationProcessor
│   │   │           └── scala
│   │   │               └── main
│   │   └── tmp
│   │       ├── compileScala
│   │       └── scala
│   │           ├── classfileBackup
│   │           └── compilerAnalysis
│   │               ├── compileScala.analysis
│   │               └── compileScala.mapping
│   ├── build.gradle.kts
│   └── src
│       ├── main
│       │   ├── resources
│       │   └── scala
│       │       └── org
│       │           └── example
│       │               └── App.scala
│       └── test
│           ├── resources
│           └── scala
│               └── org
│                   └── example
│                       └── AppSuite.scala
├── gradle
│   ├── libs.versions.toml
│   └── wrapper
│       ├── gradle-wrapper.jar
│       └── gradle-wrapper.properties
├── gradlew
├── gradlew.bat
└── settings.gradle.kts

App.scala -- Note the import error.

/*
 * This source file was generated by the Gradle 'init' task.
 */
package org.example

import com.fasterxml.jackson.databind.ObjectMapper // <------- Value fasterxml is not a member of com
import java.util.Date

object App {
  def main(args: Array[String]): Unit = {
    val now = new Date()
    val mapper = new ObjectMapper()
    println(mapper)
  }
}

build.gradle.kts

/*
 * This file was generated by the Gradle 'init' task.
 *
 * This generated file contains a sample Scala application project to get you started.
 * For more details on building Java & JVM projects, please refer to https://docs.gradle.org/8.7/userguide/building_java_projects.html in the Gradle documentation.
 */

plugins {
    // Apply the scala Plugin to add support for Scala.
    scala

    // Apply the application plugin to add support for building a CLI application in Java.
    application
}

repositories {
    // Use Maven Central for resolving dependencies.
    mavenCentral()
}

dependencies {
    // JSON
    implementation("com.fasterxml.jackson.core:jackson-databind:2.17.0")

    // Use Scala 2.13 in our library project
    implementation(libs.scala.library)

    // This dependency is used by the application.
    implementation(libs.guava)

    // Use Scalatest for testing our library
    testImplementation(libs.junit)
    testImplementation(libs.scalatest.v2.v13)
    testImplementation(libs.junit.v4.v13.v2.v13)

    // Need scala-xml at test runtime
    testRuntimeOnly(libs.scala.xml.v2.v13)
}

// Apply a specific Java toolchain to ease working on different environments.
java {
    toolchain {
        languageVersion = JavaLanguageVersion.of(21)
    }
}

application {
    // Define the main class for the application.
    mainClass = "org.example.App"
}

Relevant part of Lazy Vim dependencies

	-- Builtin LSP Config
	{'williamboman/mason.nvim'},
	{'williamboman/mason-lspconfig.nvim'},
	{'VonHeikemen/lsp-zero.nvim', branch = 'v3.x'},
	{'neovim/nvim-lspconfig'},
	{'hrsh7th/cmp-nvim-lsp'},
	{'hrsh7th/nvim-cmp'},
	{'L3MON4D3/LuaSnip'},
	-- LSPs (This should usually be installed through mason but some LSPs do not exist in mason yet)
	{
		"scalameta/nvim-metals",
		dependencies = {
			"nvim-lua/plenary.nvim",
			"j-hui/fidget.nvim",
		}
	}

Vim nvim-metals hook

-- Helper to start Scala metals lsp (Does not exist yet in mason)
vim.api.nvim_create_autocmd('FileType', {
  group = vim.api.nvim_create_augroup('nvim-metals', {clear = true}),
  pattern = {'scala', 'sbt', 'java'},
  callback = function()
		local metals_config = require('metals').bare_config()
		metals_config.capabilities = lsp_zero.get_capabilities()
		-- Adding the following line disables the status in the status bar and should allow the status to be shown with fidget but that does not seem to work. Some indications are it is due to mason...
		-- metals_config.init_options.statusBarProvider = "off"
		metals_config.settings = {
			showImplicitArguments = true,
			excludedPackages = { "akka.actor.typed.javadsl", "com.github.swagger.akka.javadsl" },
		}
		require('metals').initialize_or_attach(metals_config)
  end
})

[ckipp01]

So I think there is a couple things going on here. Firstly, I realized that I never added build.gradle.kts to the root patterns. So that would explain why it's not correctly identifying the root. I've pushed a fix for this in #668. Once merged can clean your workspace, update, and try again? You should then see those directories created in the correct places. Also, when you add a dependency, you should be prompted to re-import. Does this happen? Also is the Metals doctor showing you that everything is ✅ ?