discord4j错误的符号引用

Question

我试图在scala 3代码中使用discord4j 3.2和斜杠命令。当我添加斜杠命令的代码时，sbt在编译时给了我这个错误:

[error] Bad symbolic reference. A signature
[error] refers to Value/T in package org.immutables.value which is not available.
[error] It may be completely missing from the current classpath, or the version on
[error] the classpath might be incompatible with the version used when compiling the signature.
[warn] Caught: java.lang.AssertionError: assertion failed: failure to resolve inner class:
[warn] externalName = org.immutables.value.Value$Immutable,
[warn] outerName = org.immutables.value.Value,
[warn] innerName = Immutable
[warn] owner.fullName = org.immutables.value.Value
[warn] while parsing ~/.cache/coursier/v1/https/oss.sonatype.org/content/repositories/snapshots/com/discord4j/discord-json/1.6.10-SNAPSHOT/discord-json-1.6.10-20210908.025209-4.jar(discord4j/discordjson/json/InteractionApplicationCommandCallbackData.class) while parsing annotations in ~/.cache/coursier/v1/https/oss.sonatype.org/content/repositories/snapshots/com/discord4j/discord-json/1.6.10-SNAPSHOT/discord-json-1.6.10-20210908.025209-4.jar(discord4j/discordjson/json/InteractionApplicationCommandCallbackData.class)
[error] Bad symbolic reference. A signature

我没有问题编译代码创建斜杠命令使用相同版本的discord4j，但在scala 2代码。

这是我的sbt文件:

val scala3Version = "3.0.2"
val scala2deps = Seq(
"com.typesafe.akka" %% "akka-actor" % "2.6.0",
"com.typesafe.akka" %% "akka-actor-typed" % "2.6.0",
"com.typesafe.akka" %% "akka-stream" % "2.6.8",
"com.typesafe.akka" %% "akka-http" % "10.2.0",
"org.scalaz" %% "scalaz-core" % "7.2.29",
"io.projectreactor" %% "reactor-scala-extensions" % "0.8.+",
"org.json4s" %% "json4s-jackson" % "3.+",
"com.lihaoyi" %% "requests" % "0.2.0",
).map(d ⇒ d.cross(CrossVersion.for3Use2_13))
lazy val root = project
.in(file("."))
.settings(
name := "PUGBot",
version := "0.1.0",
scalacOptions ++= Seq(
"-language:postfixOps",
"-language:implicitConversions",
),

scalaVersion := scala3Version,
resolvers += "d4j-snapshot" at "https://oss.sonatype.org/content/repositories/snapshots",
libraryDependencies ++= Seq(
"com.discord4j" % "discord4j-core" % "3.2.0-RC3",
) ++ scala2deps,
)

如何修复这个错误?

Answer 1

de.flapdoodle.embed.mongo 3.0.0和Scala 3.0.2也有类似的问题:

scalac: Bad symbolic reference. A signature
refers to Value/T in package org.immutables.value which is not available.
It may be completely missing from the current classpath, or the version on
the classpath might be incompatible with the version used when compiling the signature.

scalac: Caught: java.lang.AssertionError: assertion failed: failure to resolve inner class:
externalName = org.immutables.value.Value$Immutable,
outerName = org.immutables.value.Value,
innerName = Immutable
owner.fullName = org.immutables.value.Value
while parsing /Library/Caches/Coursier/v1/https/repo1.maven.org/maven2/de/flapdoodle/embed/de.flapdoodle.embed.mongo/3.0.0/de.flapdoodle.embed.mongo-3.0.0.jar(de/flapdoodle/embed/mongo/config/MongodConfig.class) while parsing annotations in /Library/Caches/Coursier/v1/https/repo1.maven.org/maven2/de/flapdoodle/embed/de.flapdoodle.embed.mongo/3.0.0/de.flapdoodle.embed.mongo-3.0.0.jar(de/flapdoodle/embed/mongo/config/MongodConfig.class)

我已经添加了org.immutables.value库作为Sbt依赖，它帮助:

"org.immutables" % "value" % "2.8.8"