How to make igeo and toxiclibs work with Processing 3.1.

Hi, the title says it all.

For igeo I get the error ' bad operand etc...: import processing.opengl.* import igeo.*; size (480, 360, IG.GL);

IVec vec = new IVec(20,10,0);

double xvalue = vec.x();

IG.p("x value is "+xvalue);

double yvalue = vec.y();

IG.p("y value is "+yvalue);

double zvalue = vec.z();

IG.p("z value is "+zvalue);

Similar issue for toxiclibs. I assume the issue for Toxiclibs is that it has not been updated in five years; nevertheless, Daniel Shiffman seems to be using them in his tutorials.

I have installed them correctly in the libraries folder as my other libraries work fine (which are up to date).

Thanks.