Error: Cannot find module 'imagemin-optipng'

Tried reinstall but still get this error

› imagemin

module.js:340
    throw err;
    ^
Error: Cannot find module 'imagemin-optipng'
    at Function.Module._resolveFilename (module.js:338:15)
    at Function.Module._load (module.js:280:25)
    at Module.require (module.js:364:17)
    at require (module.js:380:17)
    at Object.<anonymous> (/Users/tcarlsen/.nvm/v0.10.26/lib/node_modules/imagemin/index.js:171:26)
    at Module._compile (module.js:456:26)
    at Object.Module._extensions..js (module.js:474:10)
    at Module.load (module.js:356:32)
    at Function.Module._load (module.js:312:12)
    at Module.require (module.js:364:17)

On install this error is showing:

npm WARN optional dep failed, continuing imagemin-optipng@0.1.0

> pngquant-bin@0.3.0 postinstall /Users/tcarlsen/.nvm/v0.10.26/lib/node_modules/imagemin/node_modules/imagemin-pngquant/node_modules/pngquant-bin
> node index.js

✗ pre-build test failed, compiling from source...
✗ Error: Command failed: In file included from pngquant.c:59:
./rwpng.h:35:10: fatal error: 'png.h' file not found
#include "png.h"    /* libpng header; includes zlib.h */
         ^
1 error generated.
make: *** [pngquant.o] Error 1