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via Stack Overflow by Liam Haworth
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spray.json.StandardFormats$class.optionFormat(Lspray/json/StandardFormats;Lspray/json/JsonFormat;)Lspray/json/StandardFormats$OptionFormat;
java.lang.NoSuchMethodError: spray.json.StandardFormats$class.optionFormat(Lspray/json/StandardFormats;Lspray/json/JsonFormat;)Lspray/json/StandardFormats$OptionFormat; at net.nikore.etcd.EtcdJsonProtocol$.optionFormat(EtcdJsonProtocol.scala:5) at net.nikore.etcd.EtcdJsonProtocol$.<init>(EtcdJsonProtocol.scala:18) at net.nikore.etcd.EtcdJsonProtocol$.<clinit>(EtcdJsonProtocol.scala) at net.nikore.etcd.EtcdClient.<init>(EtcdClient.scala:76) at net.nikore.etcd.EtcdClient$.apply(EtcdClient.scala:20) at au.com.someproject.helpers.SomeProjectService$class.main(SomeProjectService.scala:116) at au.com.someproject.some_agent.ServiceMain$.main(ServiceMain.scala:17) at au.com.someproject.some_agent.ServiceMain.main(ServiceMain.scala)