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POSubproject dependencies in SBT
 

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    <p>I am having a strange problem with SBT subprojects which I think is dependency related. Here's my setup:</p> <ul> <li>I have an SBT project with two subprojects A and B.</li> <li>A contains a class and companion object <code>MyA</code></li> <li>B depends on A.</li> <li>B contains an object <code>MyB</code> which has a main method.</li> </ul> <p>When I try to execute <code>MyB</code> from the SBT prompt, I get a <code>NoSuchMethodError</code> on <code>MyA</code>. This is not a <code>ClassNotFoundException</code>, but maybe it's happening because it sees the <code>MyA</code> class on the classpath, but not the <code>MyA</code> object.</p> <p>As a sanity check, I dropped the B subproject and moved its source into the A source tree. When I run <code>MyB</code> from the SBT prompt, it works as expected.</p> <p>Has anyone run into this, or am I doing something obviously wrong?</p> <p>Here is my project configuration:</p> <pre><code>class MyProject(info: ProjectInfo) extends ParentProject(info) { lazy val a = project("a", "a", new AProject(_)) lazy val b = project("b", "b", new BProject(_), a) object Dependencies { lazy val scalaTest = "org.scalatest" % "scalatest_2.9.0" % "1.4.1" % "test" } class AProject(info: ProjectInfo) extends DefaultProject(info) with AutoCompilerPlugins { val scalaTest = Dependencies.scalaTest val continuationsPlugin = compilerPlugin("org.scala-lang.plugins" % "continuations" % "2.9.0") override def compileOptions = super.compileOptions ++ compileOptions("-P:continuations:enable") ++ compileOptions("-unchecked") } class BProject(info: ProjectInfo) extends DefaultProject(info) } </code></pre>
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    1. COUPDATE: This seems to be a compilation error. I compiled a combined A + B source tree, then copied only the B classes into the `b/target/...` directory, and `MyB` runs correctly.
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