Simulator stopped working after I updated AppBuilder

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  1. Rajesh
    Rajesh avatar
    5 posts
    Member since:
    Mar 2013

    Posted 12 Sep 2014 Link to this post


    Device simulator in AppBuilder stopped working after I updated AppBuilder this morning. It shows white screen in iPhone skin. There is no console message. When I click Debug in simulator window it show white space without and tools or labels. Kindly look and fix this issue ASAP as I am not able to do anything. 

  2. Kaloyan
    Kaloyan avatar
    878 posts

    Posted 12 Sep 2014 Link to this post

    Hello Rajesh,

    Such issue could occur due to wrongly cached simulator files. If this is the case, you will need to navigate to the %localappdata%\Telerik\BlackDragon\Cache folder and delete all of its content. Note that, all AppBuilder clients must be turned off before that. After you have deleted the cache, please check if the issue still remains.

    Also, I must note that with the yesterdays AppBuilder 2.5 release we introduced a critical bug within the simulator that prevents the correct rendering of CSS transitions. The good news however is, we have scheduled a hotfix for this for next week.

    Until then, you should be able to test your applications in the In-browser client, actual devices or in the native emulators.

    I apologize for any inconveniences caused by this and thank you for the understanding.


    Visit the Telerik Verified Plugins Marketplace and get the custom Cordova plugin you need, already tweaked to work seamlessly with AppBuilder.

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