I have downloaded some open source software written in Java and tried to compile it using Eclipse. I got the error: \"The hierarchy of the type \'Class name\' is inc
if you are importing the eclipse project just 1. Go to the java build path setting under the project properties. 2. In case the JRE System library has an error sign attach to it double click it to open the Edit library window 3. Change the execution environment to the correct java version of the system or choose edit the other settings by checking the radio buttons assign to them. 4. Click finish