idea编译报错 javacTask:源发行版1.8 需要目标发行版1.8

Information:java: javacTask: 源发行版 1.8 需要目标发行版 1.8
Information:2018/1/9 22:12 - Compilation completed with 1 error and 0 warnings in 2s 752ms
Error:java: Compilation failed: internal java compiler error
Information:Module "algorithm" was fully rebuilt due to project configuration/dependencies changes
Information:javac 1.8.0_92 was used to compile java sources
Information:java: Errors occurred while compiling module 'algorithm'

1，Project Structure里确认两个地方:Project sdk以及project language level

2，Project Structure->Modules里Sources里的Language level

3，Preferences-> Build,Execution, Deployment ->java Compiler->Per-module bytecode Version

这三个地方需要一致。

如果是maven项目可以通过pom.xml设置编译的版本号

 <build>
        <plugins>
            <!--compiler插件-->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.6.1</version>
                <configuration>
                    <source>${jdk.version}</source>
                    <target>${jdk.version}</target>
                    <encoding>${file.encoding}</encoding>
                </configuration>
            </plugin>         
        </plugins>
    <build>