Android In-App Billing v3: “Can't perform operation: queryInventory”

Question

I have setup In-App Billing for the first time using the new v3 API. It is working correctly on my devices but I have received a lot of error reports from other users.

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Answer 1

If all above fail to help you, give it a go to try to analyse your code a little - is your IabHelper really set up at the time you're calling it?

I found myself doing it slightly wrong without realising it. A simple example of using it wrong in Activity.onCreate()

m_iabHelper = new IabHelper(this, base64EncodedPublicKey); // Declare

m_iabHelper.startSetup(new IabHelper.OnIabSetupFinishedListener() { // Setup
    public void onIabSetupFinished(IabResult result) {
        // Setup code
    }
}

// Don't do this, will produce an error
List additionalSkuList = new ArrayList(); 
additionalSkuList.add(SKU_MYSKU);
m_iabHelper.queryInventoryAsync(true, additionalSkuList, m_queryFinishedListener);
// Don't do this, will produce an error

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Above will honour you with the "IAB helper is not set up" error since while your app tries to execute the m_iabHelper.queryInventoryAsync(), the IabHelper it is not set up yet. Consider using these functions in onIabSetupFinished() or somewhere after that function is called (eg. outside the onCreate())