When you try to start Atelier with the wrong version or bitness of Java installed, you will see that error pop up. There are a few things you can check when this occurs:

1. In an OS command prompt, enter “java –version” to display something like:

java version "1.8.0_51"

Java(TM) SE Runtime Environment (build 1.8.0_51-b16)

Java HotSpot(TM) 64-Bit Server VM (build 25.51-b03, mixed mode)

This shows the version and the bitness of the Java version installed on your machine. So this can help make sure you are meeting a couple of requirements:

A. You need the Java JDK or JRE version 1.8 (JDK for Mac, JRE for other platforms)

B. The bitness of Java must match the bitness of your Atelier client. I’ve seen that a 64-bit install indicates that it is 64-bit in the "java –version” output. But for a 32-bit version of Java, no bitness is listed in the "java –version” output.

2. Check your JAVA_HOME environment variable. Make sure that if this is set that it is pointing to your Java JDK/JRE with the correct version and bitness.

On a Mac,  you can check the location of your Java 1.8 home directory with the Terminal command: /usr/libexec/java_home -v 1.8. On a Windows machine, you can enter this in a Command Prompt: where java.