Erro na instalação do imagemin

> optipng-bin@3.1.2 postinstall C:\Users\Edson\Documents\Alura\Grunt\projeto\node_modules\grunt-contrib-imagemin\node_modules\imagemin\node_modules\imagemin-optipng\node_modules\optipng-bin
> node lib/install.js

module.js:327
    throw err;
    ^

Error: Cannot find module './src/init'
    at Function.Module._resolveFilename (module.js:325:15)
    at Function.Module._load (module.js:276:25)
    at Module.require (module.js:353:17)
    at require (internal/module.js:12:17)
    at Object.<anonymous> (C:\Users\Edson\Documents\Alura\Grunt\projeto\node_modules\grunt-contrib-imagemin\node_modules\imagemin\node_modules\vinyl-fs\node_modules\gulp-sourcemaps\index.js:4:9)
    at Module._compile (module.js:409:26)
    at Object.Module._extensions..js (module.js:416:10)
    at Module.load (module.js:343:32)
    at Function.Module._load (module.js:300:12)
    at Module.require (module.js:353:17)

> gifsicle@3.0.4 postinstall C:\Users\Edson\Documents\Alura\Grunt\projeto\node_modules\grunt-contrib-imagemin\node_modules\imagemin\node_modules\imagemin-gifsicle\node_modules\gifsicle
> node lib/install.js