Error: java: javacTask: source release 8 requires target release 1.8 [duplicate]

Question

I have opened git project I was running under Eclipse previously in IntelliJ. I have changed to Java 8 in following places:

File -> Project Structure -> SDKs

and

File -> Project Structure -> Project

Where to set Java 8 else? What it wants?

The project is Maven, pom file has only dependencies sections

UPDATE

I am trying to run under IntelliJ

Answer 1

In order to compile your code you should add maven build section:

<build>
    <plugins>
        <plugin>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.2</version>
            <configuration>
                <source>1.8</source>
                <target>1.8</target>
            </configuration>
        </plugin>
    </plugins>
</build>

Also you can go to File | Settings | Build, Execution, Deployment | Compiler | Java Compiler and change it there, but it will cause other developers failures as they need to modify IDE before build