how to solve compile error "cannot resolve reference project with such signature"?
<p>I'm using IntelliJ 15.0.2, Play FrameWork 2.4, SBT 0.13.8, Java 1.8, Scala-sdk-2.117</p>

<p>This only one compile error, here is code</p>

<p><img src="https://i.stack.imgur.com/wLsmT.png" alt="">
<img src="https://i.stack.imgur.com/48TJO.png" alt="">
<img src="https://i.stack.imgur.com/MqPgR.png" alt=""></p>

<p>I guess problem is IDE compile error and importing error, but I don't know solution</p>