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  1. ,
    Expert tip

    You need to add httpcore to your dependencies. Try adding version 4.3 or further.

  2. ,
    Expert tip

    A few things cause this exception:
    1) Check if you have all jars and if they're in the correct path.
    2) Your classpath might be broken, you can define it in the command line with java -cp yourClassPath or at your IDE if you're using one.

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via GitHub by chris-martin
, 1 year ago
java.lang.ClassNotFoundException:	at java.lang.ClassLoader.findClass(	at java.lang.ClassLoader.loadClass(	at sbt.classpath.ClasspathFilter.loadClass(ClassLoaders.scala:59)	at java.lang.ClassLoader.loadClass(	at java.lang.Class.forName0(Native Method)	at java.lang.Class.forName(	at$$anonfun$getClassFor$1.apply(ReflectiveDynamicAccess.scala:21)	at$$anonfun$getClassFor$1.apply(ReflectiveDynamicAccess.scala:20)	at scala.util.Try$.apply(Try.scala:192)	at	at	at$$anonfun$loadExtensions$1$1$$anonfun$1.applyOrElse(ActorSystem.scala:769)	at$$anonfun$loadExtensions$1$1$$anonfun$1.applyOrElse(ActorSystem.scala:769)