[英]How to fix the error about sbt in the idea IDE?
在sbt的idea IDE中遇到一個奇怪的錯誤,合並策略如下,
mergeStrategy in assembly <<= (mergeStrategy in assembly) { (old) =>
{
case m if m.toLowerCase.endsWith("manifest.mf") => MergeStrategy.discard
case m if m.startsWith("META-INF") => MergeStrategy.discard
case PathList("javax", "servlet", xs @ _*) => MergeStrategy.first
case PathList("org", "apache", xs @ _*) => MergeStrategy.first
case PathList("org", "jboss", xs @ _*) => MergeStrategy.first
case "about.html" => MergeStrategy.rename
case "reference.conf" => MergeStrategy.concat
case _ => MergeStrategy.first
}
}
看起來不錯,但不幸的是,IDE 報錯了一個錯誤,它是
Cannot resolve reference <<= with such signature
Type mismatch,expected:Def.Initialize[(String) => Plugin.MergeStrategy],
actual:Def.Initialize[Any].
任何人都可以向我解釋這一點以及如何解決這個問題?
不推薦使用mergeStrategy
(和<<=
運算符)。 使用assemblyMergeStrategy
代替:
assemblyMergeStrategy in assembly := {
case m if m.toLowerCase.endsWith("manifest.mf") => MergeStrategy.discard
case m if m.startsWith("META-INF") => MergeStrategy.discard
case PathList("javax", "servlet", xs@_*) => MergeStrategy.first
case PathList("org", "apache", xs@_*) => MergeStrategy.first
case PathList("org", "jboss", xs@_*) => MergeStrategy.first
case "about.html" => MergeStrategy.rename
case "reference.conf" => MergeStrategy.concat
case s => MergeStrategy.defaultMergeStrategy(s)
}
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