Re: Hi, problem with building ABCL extension for MIT App Inventor

On 24/08/2017 22:24, Tomislav Tomšić wrote:
>     Interpreter interpreter = Interpreter.createInstance();

Try,
    Interpreter.createInstance();
    Interpreter interpreter = Interpreter.getInstance();

If I remember correctly, createInstance() returns null if an instance
has already been created.

>     return lo.getStringValue();

Also,
    return lo.javaInstance();

may work better, unless you're sure that lo will always be a Lisp string.

Vibhu