我正在将我的sbt版本从0.13.0升级到1.3.0，并且在build.sbt文件中遇到一些问题。请帮助我获取正确的结构。当前遇到的问题有错误：找不到：值scriptclasspath。以下是迁移步骤后的build.sbt文件：

import sbt._
    import Keys._
        val appName         = " "
        val appVersion      = " "
        val additionalImports = Seq(
             ....
        )
        // Don't use relative classpath for libs as eclipse won't be able to locate them for subprojects
        override def settings = super.settings ++ Seq(EclipseKeys.relativizeLibs := false)
        exportJars := true
        lazy val core = (project in file(" "))
        lazy val addressbook = (project in file(" ")).dependsOn();
        lazy val pbx = (project in file(" ")).dependsOn();
        lazy val pbxAppSoftphones = (project in file(" ")).dependsOn();
        lazy val pbxAppCallLog = (project in file(" ")).dependsOn();
        lazy val pbxAppQueues = (project in file(" ")).dependsOn();
        lazy val pbxAppClick2dial = (project in file("")).dependsOn();
        lazy val pbxAppPhonebook = (project in file("")).dependsOn();
        lazy val pbxAppOperator = (project in file("")).dependsOn();
        val main = (project in file(".")).
settings(
        // prepend all jars in $lib_dir/modules to classpath:
        scriptClasspath ~= { cp => cp.+:("modules/*").+:("customer-modules/*") }
        ).dependsOn(
           core, addressbook, pbx, pbxAppSoftphones, pbxAppCallLog, pbxAppQueues, pbxAppPhonebook, pbxAppClick2dial, pbxAppOperator
        ).aggregate(
          .core, addressbook, pbx, pbxAppSoftphones, pbxAppCallLog, pbxAppQueues, pbxAppPhonebook, pbxAppClick2dial, pbxAppOperator
        )