SDKBOX Fyber Interstitial problem

Hi!
I’m using sdkbox fyber plugin.
For integration I use instructions from sdkbox site http://docs.sdkbox.com/en/plugins/fyber/v3-cpp/.
Some ad networks was intergrated (instructions from fyber http://developer.fyber.com/content/current/android/interstitials/adding-networks/ and http://developer.fyber.com/content/current/android/rewarded-video/adding-networks/)

Now I can show rewarded video normally, but when I call

sdkbox::PluginFyber::requestInterstitial();

listener’s method onCanShowInterstitial calling with canShowInterstitial == false always and now I have no idea why.
I check every step but it have no result.

That means that the ad networks haven’t been integrated correctly. There is no default testing interstitial from fyber, so you have to rely on the other networks to test interstitial.

If you are using eclipse, make sure you follow all the steps for annotation setting.

It’s hard to see what’s wrong without the log messages.

We have a working sample with multiple ads network integrated.
http://github.com/sdkbox/sdkbox-fyber-sample