I am facing a similar issue while following this tutorial. I need help with the following :
1. I have successfully created the store and Model.
2. I was successful in uploading the data by adding the url in MyAjaxProxy. In this example it generates 5 entries of Cars and their details when I select the 'Auto Columns'.
But in next step when I right click on grid and click 'Grid Builder' (Earlier it was Auto Columns and now it has changed to Grid Builder), it asks me to add a Model. I click on 'checkbox' which says delete any additional columns.
After that, I click on advanced settings and Select Store from Existing Store Option.
Now when I click on Generate, it should show all the 5 entries data in Store.
But instead, design Grid is blank. The entries in the store(where it shows an eye) has changed to 30. When I click on that eye, it shows 30 dummy entries in unknown language. I think they are just some random words.
I does not show anything when I save and check this on browser.
Please help ..