SBT Native Packager Plugin Docker Error -

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i have used sbt docker plugin 1 of project , following error when ran:

sbt docker:publishlocal  joes-macbook-pro:my-projects joe$ sbt docker:publishlocal java hotspot(tm) 64-bit server vm warning: ignoring option maxpermsize=724m; support removed in 8.0 [info] loading project definition /users/joe/projects/my-projects/proj1/project [info] set current project sally (in build file:/users/joe/projects/my-projects/proj1/) [info] wrote /users/joe/projects/my-projects/proj1/target/scala-2.11/sally_2.11-2.1.pom java.io.ioexception: cannot run program "docker" (in directory "/users/joe/projects/my-projects/proj1/target/docker/docker/stage"): error=2, no such file or directory     @ java.lang.processbuilder.start(processbuilder.java:1048)     @ sbt.simpleprocessbuilder.run(processimpl.scala:349)     @ sbt.abstractprocessbuilder.run(processimpl.scala:128)     @ sbt.abstractprocessbuilder$$anonfun$runbuffered$1.apply(processimpl.scala:159)     @ sbt.abstractprocessbuilder$$anonfun$runbuffered$1.apply(processimpl.scala:159)     @ com.typesafe.sbt.packager.docker.dockerplugin$$anon$1.buffer(dockerplugin.scala:275)     @ sbt.abstractprocessbuilder.runbuffered(processimpl.scala:159)     @ sbt.abstractprocessbuilder.$bang(processimpl.scala:156)     @ com.typesafe.sbt.packager.docker.dockerplugin$.publishlocaldocker(dockerplugin.scala:285)     @ com.typesafe.sbt.packager.docker.dockerplugin$$anonfun$projectsettings$14.apply(dockerplugin.scala:106)     @ com.typesafe.sbt.packager.docker.dockerplugin$$anonfun$projectsettings$14.apply(dockerplugin.scala:105)     @ scala.function4$$anonfun$tupled$1.apply(function4.scala:35)     @ scala.function4$$anonfun$tupled$1.apply(function4.scala:34)     @ scala.function1$$anonfun$compose$1.apply(function1.scala:47)     @ sbt.$tilde$greater$$anonfun$$u2219$1.apply(typefunctions.scala:40)     @ sbt.std.transform$$anon$4.work(system.scala:63)     @ sbt.execute$$anonfun$submit$1$$anonfun$apply$1.apply(execute.scala:228)     @ sbt.execute$$anonfun$submit$1$$anonfun$apply$1.apply(execute.scala:228)     @ sbt.errorhandling$.wideconvert(errorhandling.scala:17)     @ sbt.execute.work(execute.scala:237)     @ sbt.execute$$anonfun$submit$1.apply(execute.scala:228)     @ sbt.execute$$anonfun$submit$1.apply(execute.scala:228)     @ sbt.concurrentrestrictions$$anon$4$$anonfun$1.apply(concurrentrestrictions.scala:159)     @ sbt.completionservice$$anon$2.call(completionservice.scala:28)     @ java.util.concurrent.futuretask.run(futuretask.java:266)     @ java.util.concurrent.executors$runnableadapter.call(executors.java:511)     @ java.util.concurrent.futuretask.run(futuretask.java:266)     @ java.util.concurrent.threadpoolexecutor.runworker(threadpoolexecutor.java:1142)     @ java.util.concurrent.threadpoolexecutor$worker.run(threadpoolexecutor.java:617)     @ java.lang.thread.run(thread.java:745) caused by: java.io.ioexception: error=2, no such file or directory     @ java.lang.unixprocess.forkandexec(native method)     @ java.lang.unixprocess.<init>(unixprocess.java:248)     @ java.lang.processimpl.start(processimpl.java:134)     @ java.lang.processbuilder.start(processbuilder.java:1029)     @ sbt.simpleprocessbuilder.run(processimpl.scala:349)     @ sbt.abstractprocessbuilder.run(processimpl.scala:128)     @ sbt.abstractprocessbuilder$$anonfun$runbuffered$1.apply(processimpl.scala:159)     @ sbt.abstractprocessbuilder$$anonfun$runbuffered$1.apply(processimpl.scala:159)     @ com.typesafe.sbt.packager.docker.dockerplugin$$anon$1.buffer(dockerplugin.scala:275)     @ sbt.abstractprocessbuilder.runbuffered(processimpl.scala:159)     @ sbt.abstractprocessbuilder.$bang(processimpl.scala:156)     @ com.typesafe.sbt.packager.docker.dockerplugin$.publishlocaldocker(dockerplugin.scala:285)     @ com.typesafe.sbt.packager.docker.dockerplugin$$anonfun$projectsettings$14.apply(dockerplugin.scala:106)     @ com.typesafe.sbt.packager.docker.dockerplugin$$anonfun$projectsettings$14.apply(dockerplugin.scala:105)     @ scala.function4$$anonfun$tupled$1.apply(function4.scala:35)     @ scala.function4$$anonfun$tupled$1.apply(function4.scala:34)     @ scala.function1$$anonfun$compose$1.apply(function1.scala:47)     @ sbt.$tilde$greater$$anonfun$$u2219$1.apply(typefunctions.scala:40)     @ sbt.std.transform$$anon$4.work(system.scala:63)     @ sbt.execute$$anonfun$submit$1$$anonfun$apply$1.apply(execute.scala:228)     @ sbt.execute$$anonfun$submit$1$$anonfun$apply$1.apply(execute.scala:228)     @ sbt.errorhandling$.wideconvert(errorhandling.scala:17)     @ sbt.execute.work(execute.scala:237)     @ sbt.execute$$anonfun$submit$1.apply(execute.scala:228)     @ sbt.execute$$anonfun$submit$1.apply(execute.scala:228)     @ sbt.concurrentrestrictions$$anon$4$$anonfun$1.apply(concurrentrestrictions.scala:159)     @ sbt.completionservice$$anon$2.call(completionservice.scala:28)     @ java.util.concurrent.futuretask.run(futuretask.java:266)     @ java.util.concurrent.executors$runnableadapter.call(executors.java:511)     @ java.util.concurrent.futuretask.run(futuretask.java:266)     @ java.util.concurrent.threadpoolexecutor.runworker(threadpoolexecutor.java:1142)     @ java.util.concurrent.threadpoolexecutor$worker.run(threadpoolexecutor.java:617)     @ java.lang.thread.run(thread.java:745) [error] (docker:publishlocal) java.io.ioexception: cannot run program "docker" (in directory "/users/joe/projects/my-projects/proj1/target/docker/docker/stage"): error=2, no such file or directory

check if docker running? try restarting docker daemon. should trick! alternatively try setting docker environment in every command line shell:

eval "$(docker-machine env default)"

where default name of docker machine created. make sure replace 1 created.

next, try giving current user docker previliges:

sudo usermod -ag docker $user

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