Double Jump i don´t have!

Why in my version I have no option: Double Jump, this is a problem of version or something else, someone please help me?

I'm doing a course in video lessons and I'm standing at the moment because I dont have this option in my Construct2 if anyone knows why and can help me, thank you now.

What is the release number you are using ?

Have you added the platform behavior to your object ?

It was my version she really did not have that option, I downloaded a version more acts and solved the problem, but seizing the moment, how do I use the node-webkit I downloaded the Scirra the site but do not know how to get the Construct 2 the use to view my project without having to use the browser?

cbmenezes2015

Node-webkit (now referred to as NWJS) comes as a separate installation now, so make sure to download and install from HERE.

NW.JS is also a licensed only feature.

If you don't own a proper C2 license, you cannot use that feature.

If you want to get a license, now is kind of an excellent time as the personal license is on sale for a few days.

Get one quickly if you haven't already. Once the sale is done, it's done.

Thanks for the tip zenox98 downloaded the installer and everything went well thank you very much the same. But now it appeared an error message that is giving me a headache and can not access my project that was almost ending:

When I try to open my project he appears with the following error message and stop me from opening:

Check failure! This is a probably a bug:

can not find fram animation Either in last_path or project location

and a lot of text to more that error, I wonder what might have happened?

I thank you for everyone's help!