I\'m trying to integrate Android Market in-app purchases into my app, but unfortunately coming across an annoying error every time I try to purchase a real inapp product.
I have faced with the same issue , The solution for me was uploading the current version of your app to the play store , If it is for testing then upload it to the Alpha or the Beta channel , I have done this and the error is gone and the pricing details is shown correctly ..
Here are some things to check:
What did it for me, after 6 hours, was this last part:
UPDATE
This error comes when everything you done is perfect, you have used signed APK with the proper product id, but you have to note that the account that you are using might don't have proper valid credit card details.
So whenever you want to buy any product even with test account, that account should have valid credit details.
In order to solve this problem, follow these steps:
Create the product on Google play developer console.
Save and set it to "Active".
Upload the APK to Google play.
N.B. The in-app billing may not work until after 6 hours of creating your product in step 1.
you must accept to become tester
Release management -> app releases -> manage tester then open this link(Opt-in URL) with incognito mode to login tester account