![]() ![]() ![]() To globally configure $JAVA_HOME for all GUI applications, see If this setting is defined, the VS Code plugin uses the custom path instead of "Java Home" variable in the settings menu. To override the default Java home location, update the The VS Code plugin uses by default the JAVA_HOME environment variable (via To manually trigger a build import, execute the "Import build" command throughĮxecute the "Run Doctor" through the command palette to troubleshoot potentialĬonfiguration problems in your workspace. When you change build.sbt or sources under project/, you will be prompted to For example, this step can takeĮverything from 10 seconds in small cached builds up to 10-15 minutes in large If library dependencies need to be downloaded. The exact time depends on the complexity of the build and The "Import build" step can take a long time, especially the first time you Update the "Sbt Script" setting to use a custom sbt script instead of theĭefault Metals launcher if you need further customizations like reading environment However, the environment variables SBT_OPTS and JAVA_OPTS are not respected. Once the sources have compiled successfully, you can navigate the codebase withīy default, Metals runs an embedded sbt-launch.jar launcher that respects. Once the import step completes, compilation starts for your open *.scala Import sbt builds, but you don't need Bloop installed on your machine to run this step. Behind the scenes, Metals uses Bloop to.metals/metals.log to watch the build import progress. "Don't show again" disables this prompt forever, use rm -rf."Not now" disables this prompt for 2 minutes.The first time you open Metals in a new workspace it prompts you to import the build.Ĭlick "Import build" to start the installation step. Using pre-release versions may result in less stable experience and it is not indented for beginners. It's encouraged to use them with SNAPSHOT releases of Metals server. It is also possible to opt in to install the pre-release version and try out the latest cutting edge features from Metals server.Īpart from new features, pre-release versions also include many bugfixes. Opened, which includes *.sbt, *.scala and *.sc file, or a standard Scalaĭirectory structure src/main/scala is detected. The main directory contains build.sbt or build.sc file, a Scala file is Next, open a directory containing your Scala code. dotty-ide-artifact before opening the workspace with Metals. Workspace that was previously opened with Dotty Language Server you need toįirst remove. However, if you want to work on Scala 3 code in a Marketplace by clicking on this badge or via the VS Code editor:ĭoes not need to be disabled because the Metals and Dotty extensions don'tĬonflict with each other. It's recommended to upgrade to Scala 2.12 or Scala 2.13 Installation Note that 2.11.x support is deprecated and it will be removed in future releases. Metals is developed on many operating systems andĮvery PR is tested on Ubuntu, Windows and MacOS. Points to a valid Java 8, 11 or 17 installation. Supported, please make sure the JAVA_HOME environment variable Let's start by making a new file called debug.Java 8, 11, 17 provided by OpenJDK or Oracle. Using a debugger allows you to move through the program looking at everything that the program knows about. This is both potentially disruptive to the code and it means that you have to decide up-front where you think the problem is and what variables are of note. When you can't work out why your program is not working you may be used to sprinkling print functions all over the place to narrow down where the problem is. One of the most useful features of IDEs is that the allow you a more graphical and easy to use interface to debuggers. These tools are usually used in the command-line in a text-based environment. Most programming languages come with some way of running their programs through a debugger, C and C++ have gdb on Linux for example and Python comes with a tool called pdb. Secondly, it's the use of a debugger which is a tool which lets you inspect the state of your program as it's running. Firstly, it's the process by which you find and resolve problems or bugs in your code. The term debugging has two main meanings.
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