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Questions about compile errors which are the result of a combination of a too new Java version and a too old Scala version come regularily in the chat and issues. We could maintain a simple matrix for minimal required Scala versions per Java version and log a warning or add an additional message if the compilation fails, to guide the user.
The comfigured Scala version {version} is known to be not compatible to JVM {version}.
Please update to at least Scala {version} by overriding:
def scalaVersion = "{version}"
The text was updated successfully, but these errors were encountered:
Hi @lefou, This is my first attempt at contributing, so please excuse me if my questions seem trivial.
For defining the compatible versions matrix, can i rely on Scala JDK compatibility docs or is there any other resource that we are expected to refer to?
Can this problem be addressed by introducing a check task in the build.sc file that runs before the compile task?
For defining the compatible versions matrix, can i rely on Scala JDK compatibility docs or is there any other resource that we are expected to refer to?
I think it's a good start. We can deviate if needed. Ideally you add a link to that page into a comment, so later maintainer have the origin source at hand.
Can this problem be addressed by introducing a check task in the build.sc file that runs before the compile task?
A check task would be nice since it allows user some customization. To be helpful, the warning is show close to a potential compilation error, which we can't guarantee if it's a separate task though. You could let this task return some message, which you also append to any potentially error message from the compile task.
Questions about compile errors which are the result of a combination of a too new Java version and a too old Scala version come regularily in the chat and issues. We could maintain a simple matrix for minimal required Scala versions per Java version and log a warning or add an additional message if the compilation fails, to guide the user.
The text was updated successfully, but these errors were encountered: