java - How do I run a Play Framework 2.1 project in IntelliJ? -


i have existing play 2.1 project. i've been running console , works fine. however, when try run intellij using these instructions doesn't work:

https://www.jetbrains.com/help/idea/getting-started-with-play-2-x.html#run_debug_playapp

first tried running right clicking on app , selecting "run play 2 app". not run , gave me error:

sbt.incompatiblepluginsexception: binary incompatibility in plugins detected.

after research issue added -djline.terminal= jvm options , tried again. time ran, gave error when tried open page in browser:

global : unsupported major.minor version 52.0

finally, tried reimporting project intellij. before import, forced me update sbt version in build.properties 0.12.2 0.12.4. did this, still getting same errors listed above.

note: have java 7 set jdk.

here full stack trace:

play.api.playexception: cannot init global object[global : unsupported major.minor version 52.0]     @ play.api.withdefaultglobal$$anonfun$play$api$withdefaultglobal$$globalinstance$1.apply(application.scala:57) ~[play_2.10-2.1.1.jar:2.1.1]     @ play.api.withdefaultglobal$$anonfun$play$api$withdefaultglobal$$globalinstance$1.apply(application.scala:51) ~[play_2.10-2.1.1.jar:2.1.1]     @ play.utils.threads$.withcontextclassloader(threads.scala:18) ~[play_2.10-2.1.1.jar:2.1.1]     @ play.api.withdefaultglobal$class.play$api$withdefaultglobal$$globalinstance(application.scala:50) ~[play_2.10-2.1.1.jar:2.1.1]     @ play.api.defaultapplication.play$api$withdefaultglobal$$globalinstance$lzycompute(application.scala:383) ~[play_2.10-2.1.1.jar:2.1.1]     @ play.api.defaultapplication.play$api$withdefaultglobal$$globalinstance(application.scala:383) ~[play_2.10-2.1.1.jar:2.1.1] caused by: java.lang.unsupportedclassversionerror: global : unsupported major.minor version 52.0     @ java.lang.classloader.defineclass1(native method) ~[na:1.7.0_80]     @ java.lang.classloader.defineclass(classloader.java:800) ~[na:1.7.0_80]     @ java.security.secureclassloader.defineclass(secureclassloader.java:142) ~[na:1.7.0_80]     @ java.net.urlclassloader.defineclass(urlclassloader.java:449) ~[na:1.7.0_80]     @ java.net.urlclassloader.access$100(urlclassloader.java:71) ~[na:1.7.0_80]     @ java.net.urlclassloader$1.run(urlclassloader.java:361) ~[na:1.7.0_80]

the issue because of java version mismatch. referring wikipedia java class reference :

j2se 8 = 52

j2se 7 = 51

when importing project try change project sdk java 8 java 7

you can try adding following build.sbt:

javacoptions ++= seq("-source", "1.7", "-target", "1.7")


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