Missing scripts when making canvas for HUD

http://unity3d.com/learn/tutorials/projects/survival-shooter/health-hud

^ I'm going through that tutorial but when I made a canvas object, the gameobject has the Rect Transform and Canvas objects it should but it has 2 slots for scripts and it could not load them.

It seems like one maybe should be GraphicRaycaster as per the tutorial but what is the other one and why can't I find these in my project? Shouldn't they be there since they are part of the UI Element I added (canvas?)?

Thanks

 

Ok yeah this is super bothersome... I went through and put a little heart sprite image for health and when I run it with that it says missing script and gives this message:

Whatever it's "fixing" screws up my pathfinding algorithm somehow...

 

I am running into this issue as well. Is there a fix? I am running 5.0.1f1 personal.

 

Apparently it's just super messy... I found another thread that's been going a while with replies as late as this month about similar things not working.

I've just moved on and did my GUI manually with OnGUI functions and setting the rects for icons, stats, etc. programmatically.

 

I use 5.0.1f1 personal, create my first scene.
Add ui-text, push run, and give error
GameObject (named 'Image') references runtime script in scene file. Fixing!

 

I save main project, start new project add Text, and cant see error.
I reopen my main project, add Text, cant see error. wtf?!

 

Same issue and version here. It's canvas specific, whether I create Text or Image, this persistent error just keeps coming back. Scripts on both the canvas and events system just display a weird icon -like a cut image- and no name.
I see this has been first posted here about 6 weeks ago, but I saw the same problem arising in questions posted in 2012. Not a single Unity "official" has said a word in both dates!!

P.S. It has nothing to do with the tut mentioned in the OP. I'm just creating a canvas for a 2D game I'm making.

 

Since nobody cared to answer, my solution was to start a new project and it worked!

 

Solution is here on SO: http://stackoverflow.com/questions/32335448/unity-ui-components-have-only-missing-scripts Shut down Unity. Then, you have to delete the temp and library folder from your project.