angular2-image-gallary convert.js failing

I am trying to use angular2-webpack-starter with angular2-image-gallery. I have the project building with the first 4 steps, but when I get to:

5. Run Convert Script

node node_modules/angular2-image-gallery/convert.js <path/to/your/images>

I get the following error:

Creating folder structure...
...done (folder structure)

Converting images...
src\assets\img\angular-logo.png
Error: Could not execute GraphicsMagick/ImageMagick: gm "identify" "-ping"    "-ver
bose" "src\assets\img\angular-logo.png" this most likely means the gm/convert bi
naries can't be found
at ChildProcess.<anonymous> (C:\Development\stefan-site\node_modules\gm\lib\
command.js:232:12)
at emitOne (events.js:96:13)
at ChildProcess.emit (events.js:188:7)
at ChildProcess.cp.emit (C:\Development\stefan-site\node_modules\gm\node_mod
ules\cross-spawn\lib\enoent.js:36:37)
at Process.ChildProcess._handle.onexit (internal/child_process.js:215:12)
C:\Development\stefan-site\node_modules\angular2-image-gallery\convert.js:116
            throw err;
            ^

Error: Could not execute GraphicsMagick/ImageMagick: gm "identify" "-ping" "-ver
bose" "src\assets\img\angular-logo.png" this most likely means the gm/convert bi
naries can't be found
at ChildProcess.<anonymous> (C:\Development\stefan-site\node_modules\gm\lib\
command.js:232:12)
at emitOne (events.js:96:13)
at ChildProcess.emit (events.js:188:7)
at ChildProcess.cp.emit (C:\Development\stefan-site\node_modules\gm\node_mod
ules\cross-spawn\lib\enoent.js:36:37)
at Process.ChildProcess._handle.onexit (internal/child_process.js:215:12)

My images are basic JPGs no bigger than 100KB. Any idea why this is failing?

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