>vscode prompt me that it could not locate a valid Java executable
I think the "Java 8 Runtime" is required .
>I have java 1.6 installed on my machine in order to get flash builder
Is it not possible to install different Java versions in parallel?!
>it feels a bit complicated (at least for me) to configure a basic flexJS
project at the moment.
I would start with Josh's tutorials, VSCode and Yeoman 
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