# InAppPurchases JNI error: billingclient.api not found

**URL:** <https://forum.juce.com/t/inapppurchases-jni-error-billingclient-api-not-found/37415>\
**Category:** Android\
**Created:** [February 1, 2020, 4:00pm UTC](https://forum.juce.com/t/inapppurchases-jni-error-billingclient-api-not-found/37415 "2020-02-01T16:00:10Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![benediktadams](https://avatars.discourse-cdn.com/v4/letter/b/6a8cbe/32.png) [@benediktadams](https://forum.juce.com/u/benediktadams)\
**Post date:** [February 1, 2020, 4:00pm UTC](https://forum.juce.com/t/inapppurchases-jni-error-billingclient-api-not-found/37415/1 "2020-02-01T16:00:10Z")

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So,

I got my InAppPurchases classes working on Android to the extend that they don’t highlight errors anywhere anymore and I can build. But now, when trying to run it, the app crashes and I get a JNI error:

> JNI DETECTED ERROR IN APPLICATION: JNI NewGlobalRef called with pending exception java.lang.ClassNotFoundException: Didn’t find class “com.android.billingclient.api.SkuDetails” on path: DexPathList[[zip file “/data/app/com.myCompany.myApp-Pkc-fuzcNuduEZLgviHL5w==/base.apk”],nativeLibraryDirectories=[/data/app/com.myCompany.myApp-Pkc-fuzcNuduEZLgviHL5w==/lib/arm64, /data/app/com.myCompany.myApp-Pkc-fuzcNuduEZLgviHL5w==/base.apk!/lib/arm64-v8a, /system/lib64, /product/lib64]]

`juce_product_unlocking` module is enabled  
`InApp Billing` is enabled in Projucer

When trying to google for the problem all I come up with is, that the class is missing from the DexPathList. The solutions on stackoverflow and such suggest that it’s a `Multidex` problem, but so far I was unable to resolve the problem following that route.

Does anyone know where I can find said list? Or influence what’s on there? Or know what’s going on at all here?

Also since I had different Juce/Android problems because of the device I’m using to test, it’s a Google Pixel 3XL.

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**Author:** ![ed95](https://sea2.discourse-cdn.com/flex026/user_avatar/forum.juce.com/ed95/32/7635_2.png) [@ed95](https://forum.juce.com/u/ed95)\
**Post date:** [February 3, 2020, 11:24am UTC](https://forum.juce.com/t/inapppurchases-jni-error-billingclient-api-not-found/37415/2 "2020-02-03T11:24:41Z")

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Have you re-saved your project with a Projucer built from the tip of the `develop` branch?

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<div class="post-metadata">

**Author:** ![benediktadams](https://avatars.discourse-cdn.com/v4/letter/b/6a8cbe/32.png) [@benediktadams](https://forum.juce.com/u/benediktadams)\
**Post date:** [February 3, 2020, 1:07pm UTC](https://forum.juce.com/t/inapppurchases-jni-error-billingclient-api-not-found/37415/3 "2020-02-03T13:07:57Z")

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I have now and that fixed it… I was actually on the dev branch before you wrote this, but I hadn’t rebuild the Projucer too.

Thanks!