Скачать или смотреть Resolving Scala 2.13 Build Errors: A Guide to Fixing the scalaoptions Problem

Encountering errors with `scalaoptions` after upgrading to Scala 2.13? This guide walks you through the solution step-by-step.
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This video is based on the question https://stackoverflow.com/q/63051751/ asked by the user 'Aamir' ( https://stackoverflow.com/u/3380023/ ) and on the answer https://stackoverflow.com/a/63052554/ provided by the user 'Mateusz Kubuszok' ( https://stackoverflow.com/u/1305121/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Upgrade Issues with Scala 2.13: Fixing scalaoptions Errors

Upgrading to a new version of Scala can sometimes introduce unexpected challenges. For developers moving to Scala 2.13.2, a common issue arises with invalid scalaoptions. If you're seeing errors related to scalac options such as:

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Don’t worry; we are here to help you troubleshoot and resolve these errors effectively. Let's break down the solution together.

Understanding the Problem

When you upgrade to Scala 2.13, certain scalac options may no longer be valid due to changes in the Scala compiler. The error messages you're encountering indicate that specific -Xlint options and an argument -Yno-adapted-args are no longer supported in the new version.

Common Culprits

These unsupported options are typically configured in your build.sbt file or through plugins you have imported. It's essential to locate where these settings are established so you can make the necessary adjustments.

Step-by-Step Solution

1. Locate the Problematic Options

First, you need to check your build.sbt file. Here’s what you should look for:

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If you find any of these options in your configuration, they need to be removed.

2. Use the Inspect Command

To pinpoint where these options are being set, use the inspect scalacOptions command in your SBT console. This command will help you trace all modifications made to the scalacOptions settings. You may find it helpful in identifying if a plugin is responsible for these options.

3. Remove Unsupported Options

Once you have located the unsupported options, you can simply remove them from your build.sbt file. If these options are coming from a plugin that you cannot edit directly, you can manually exclude them by adding the following snippet to your build.sbt:

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Testing the Changes

After making the necessary modifications, refresh your project and try to build again. You should no longer encounter the scalaoptions errors, and your project should compile successfully with Scala 2.13.2.

Conclusion

Upgrading to a new version of a programming language like Scala can come with its own set of challenges. However, by carefully inspecting and updating your scalacOptions, you can overcome compatibility issues with ease. Should you run into further complications, don't hesitate to seek help from the community or refer back to documentation.

With these steps, you are now well-equipped to handle scalaoptions errors after upgrading to Scala 2.13. Happy coding!