IDEA javac source release 1 7 requires target release 1 7

Question

When running a JUnit test  using IntelliJ IDEA  I get    How can I correct this    Using SDK 1 7 Module language level is 1 7   Maven build works fine   That s why I believe this in IDEA configuration issue

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I ve hit this after just minor upgrade from IntelliJ IDEA 14 to v14 1  For me changing an edit of top parent pom helped and then clicked re-import Maven  if it is not automatic    But it maybe just enough to Right Click on module s  aggregated parent module and Maven -  Reimport

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Make sure right depency is selected  File   Project Structure  Select your project and navigate to Dependencies tab  Select right dependancy from dropdown or create new

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I resolved bellow method  File    Project Structure    Project    Project Language Level  --  do set proper version  ex  1 5

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Modify the compiler setting file of the project in the following path and change the  target  to 1 7       project  idea compiler xml    lt bytecodeTargetLevel gt     lt module name  project-name  target  1 7    gt   lt  bytecodeTargetLevel gt

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Have you looked at your build configuration it should like that if you use maven 3 and JDK 7   lt build gt       lt finalName gt SpringApp lt  finalName gt       lt plugins gt           lt plugin gt               lt artifactId gt maven-compiler-plugin lt  artifactId gt               lt configuration gt                   lt source gt 1 7 lt  source gt                   lt target gt 1 7 lt  target gt               lt  configuration gt           lt  plugin gt                   lt  plugins gt           lt  build gt

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IntelliJ 15  2016  amp  2017  Similar to that discussed below for IntelliJ 13  amp  14  but with an extra level in the Settings Preferences panel  Settings   Build  Execution  Deployment   Compiler   Java Compiler     IntelliJ 13  amp  14  In IntelliJ 13 and 14  check the Settings   Compiler   Java Compiler UI to ensure you re not targeting a different bytecode version in your module

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If it is a Gradle project  in your build gradle file  search for following settings   sourceCompatibility    xx  targetCompatibility    xx    For all subrpojects  in your root build gradle file  you may put   subprojects   project - gt      sourceCompatibility    1 7      targetCompatibility    1 7      Although you can manually set language levels in Idea   Settings  if it is a Gradle project  Idea automatically synchronizes module  iml files from Gradle settings   tested with Idea 15    So all your manual changes are overriden when gradle is refreshed    Based on Gradle documentation  if these are not set  then current JVM configuration is used

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I resolved it by setting the field blank   Settings   Compiler   Java Compiler   Project bytecode version  Than IntelliJ uses the JDK default version

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In IntelliJ IDEA 14 1 the  Target bytecode version  is in a different place   The following change worked for me   File   Settings      Build  Execution  Deployment   Compiler   Java Compiler   change Target bytecode version from 1 5 to 1 8

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If all the previous solutions haven t worked for you  which was my case   you can delete intellij config files    project directory  idea compiler xml project directory  idea encodings xml project directory  idea misc xml project directory  idea modules xml project directory  idea vcs xml project directory  idea workspace xml etc    Intellij will regenerate new ones later  However  BE CAREFUL  this will also delete all intellij configuration made  on the projet  i e  configuration of debug mode

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You need to change Java compiler version in in build config

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check   idea misc xml sometimes you need to change languageLevel  JDK 1 X  attribute manually

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I ran into this and the fix was to go to Project Settings   Modules   click on the particular module   Dependencies tab  I noticed the Module SDK was still set on 1 6  I changed it to 1 7 and it worked

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I ve found required options   target bytecode version   in settings   compiler   java compiler in my case  intelij idea 12 1 3

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I found another way to run into this error  You can get this if you have been re-organizing your directory structure  and one of your poms is pointing to the old parent which no-longer configures javac  because that configuration was moved to a middle level   If this happens the top level defaults to 1 5 and the misbehaving lower level pom inherits it   So another thing to check when you see this error is that your pom structure is matching your directory structure properly

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If Maven build works fine  try to synchronizing structure of Maven and IntelliJ IDEA projects   In the Maven tool window  click refresh button   On pressing this button  IntelliJ IDEA parses the project structure in the Maven tool window   Note that this might not help if you re using EAP build  since Maven synchronization feature may be broken sometimes

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From one moment to the other I also got this error without a clear reason  I changed all kinds of settings on the compiler module etc  But in the end I just recreated the IntelliJ project by reimporting the Maven project and the issue was solved  I think this is a bug   IntelliJ 12 129 961

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Most likely you have incorrect compiler options imported from Maven here     Also check project and module bytecode  target  version settings outlined on the screenshot   Other places where the source language level is configured    Project Structure   Project      Project Structure   Modules  check every module    Sources     Maven default language level is 1 5  5 0   you will see this version as the Module language level on the screenshot above   This can be changed using maven-compiler-plugin configuration inside pom xml    lt project gt             lt build gt                 lt plugins gt         lt plugin gt           lt groupId gt org apache maven plugins lt  groupId gt           lt artifactId gt maven-compiler-plugin lt  artifactId gt           lt configuration gt             lt source gt 1 8 lt  source gt             lt target gt 1 8 lt  target gt           lt  configuration gt         lt  plugin gt       lt  plugins gt               lt  build gt           lt  project gt    or   lt project gt             lt properties gt       lt maven compiler source gt 1 8 lt  maven compiler source gt       lt maven compiler target gt 1 8 lt  maven compiler target gt     lt  properties gt           lt  project gt    IntelliJ IDEA will respect this setting after you Reimport the Maven project in the Maven Projects tool window

[java] IDEA: javac: source release 1.7 requires target release 1.7

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