Error creating new Java Project in Eclipse

Question

I have Eclipse Kepler. I recently deleted my JRE 7 folder and I'm now using the JDK 8. When I create a new project I get a caution sign with something related to compliance level:

What do I need to do to encounter the problem?

Answer 1

Kepler doesn't have 1.8 compliance support, so you have to update to a newer version of Eclipse (like Juno).

When you do, you have to make sure that you have properly pointed the JDK installation directory in Eclipse. You can navigate to Window → Preferences → Java → Installed JREs , add the JDK8 environment (and select it as default, as you don't have any other, since you have deleted 1.7 one).

Then, when you navigate to Window → Preferences → Java → Compiler , you should be able to select 1.8 as "Compliance level", as shown here:

Answer 2

Eclipse Kepler不支持Java8。您需要转到Eclipse的当前版本（Eclipse Mars）以获得Java 8的全面支持。