我将 sbt 升级为sbt-0.13.16 to sbt-1.2.8我的以下代码被破坏了
lazy val gruntDirectory = baseDirectory {
_ / "public"
}
unmanagedResourceDirectories in Assets += gruntDirectory { _ / "node_modules"}
这是我收到的错误
/build.sbt:131: error: No implicit for Append.Value[Seq[java.io.File], sbt.Def.Initialize[java.io.File]] found,
so sbt.Def.Initialize[java.io.File] cannot be appended to Seq[java.io.File]
unmanagedResourceDirectories in Assets += gruntDirectory { _ / "node_modules"}
^
[error] Type error in expression
Project loading failed: (r)etry, (q)uit, (l)ast, or (i)gnore?
我该如何解决这个问题
你需要使用.value提取设置的值：
unmanagedResourceDirectories in Assets += baseDirectory.value / "public" / "node_modules"
如果你想定义gruntDirectory对于其他事情，你可以这样做：
lazy val gruntDirectory = Def.setting { baseDirectory.value / "public" }
unmanagedResourceDirectories in Assets += gruntDirectory.value / "node_modules"
请注意，您可以使用.value仅在右侧:=/+=/++=/~=作业或内部Def.{setting, task, taskDyn, inputTask, inputTaskDyn}.
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