解决Error:java: System Java Compiler was not found in classpath

第一次使用intellij的时候碰到了一个这样的问题：

Error:java: System Java Compiler was not found in classpath:java.lang.ClassNotFoundException: com.sun.tools.javac.api.JavacTool    at java.net.URLClassLoader$1.run(Unknown Source)    at java.net.URLClassLoader$1.run(Unknown Source)    at java.security.AccessController.doPrivileged(Native Method)    at java.net.URLClassLoader.findClass(Unknown Source)    at java.lang.ClassLoader.loadClass(Unknown Source)    at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)    at java.lang.ClassLoader.loadClass(Unknown Source)    at java.lang.Class.forName0(Native Method)    at java.lang.Class.forName(Unknown Source)    at org.jetbrains.jps.builders.impl.java.JavacCompilerTool.createCompiler(JavacCompilerTool.java:70)    at org.jetbrains.jps.javac.JavacMain.compile(JavacMain.java:63)    at org.jetbrains.jps.javac.ExternalJavacProcess.compile(ExternalJavacProcess.java:196)    at org.jetbrains.jps.javac.ExternalJavacProcess.access$400(ExternalJavacProcess.java:48)    at org.jetbrains.jps.javac.ExternalJavacProcess$CompilationRequestsHandler$1.run(ExternalJavacProcess.java:263)    at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)    at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)    at java.util.concurrent.FutureTask.run(Unknown Source)    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)    at java.lang.Thread.run(Unknown Source)

开始以为是环境变量配置的不对，结果搞了蛮久，最后解决方法如图：

将箭头标记的这个地方改为eclipse就好了。