Dub / Derelict confusion

[Paul via Digitalmars-d-learn]

@wobbles:

Sorry, should have said, I built SDL and the libraries are 
installed in /usr/local/lib

> could you give some more details? Full package.json, the 
> file-structure of your project and the full output from dub 
> would help.

@John Colvin
The entire contents of dub.json are as above. My program is a 
single file just to check that I can init SDL:

import std.stdio;
import derelict.sdl2.sdl;
void main(){

     // Load the SDL 2 library.
     DerelictSDL2.load();

     //init SDL
     .....

}



The error is:

Error executing command build: Failed to load package at 
/home/paul/D-programs/: Expected end of string after JSON value, 
not ': {
"derelict-sdl2":"~>1.0.0",
"derelict-gl3":"~master",
}'.


TIA