Upgrading from versions prior to 3.0

Here are some things you need to do:

• Remove imageviewer.js from your angular-cli.json
  Just remove this part of your code on angular-cli.json:

"scripts": [
    // Remove this line of code
    "../node_modules/ng2-image-viewer/imageviewer.js"
],

• Install iv-viewer package
  Now the ng2-image-viewer uses the iv-viewer as peer dependency, so you need to install it, just run npm install iv-viewer --save

That's it! You're good to go 👍