# License error when build android + gocoder SDK using release mode

**URL:** <https://community.wowza.com/t/license-error-when-build-android-gocoder-sdk-using-release-mode/53511>\
**Category:** Wowza GoCoder SDK\
**Created:** [June 14, 2019, 2:51pm UTC](https://community.wowza.com/t/license-error-when-build-android-gocoder-sdk-using-release-mode/53511 "2019-06-14T14:51:04Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![agung\_cz](https://avatars.discourse-cdn.com/v4/letter/a/fbc32d/32.png) [@agung\_cz](https://community.wowza.com/u/agung_cz)\
**Post date:** [June 14, 2019, 2:51pm UTC](https://community.wowza.com/t/license-error-when-build-android-gocoder-sdk-using-release-mode/53511/1 "2019-06-14T14:51:04Z")

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When we build the app using gocoder sdk on debug-mode all went well.

But, on release mode we stuck on error about licensing.

We double-check the license key, and all is valid.

Below the error from console.

Any help?

```auto
No pending exception expected: java.lang.NoSuchFieldError: no "I" field "mVerificationResult" in class "Lcom/wowza/gocoder/sdk/support/licensing/LicenseManager;" or its superclasses

JNI DETECTED ERROR IN APPLICATION: fid == null
2019-06-14 10:57:09.955 27036-27036/? A/m.xxx.activity: java_vm_ext.cc:542] in call to SetIntField
2019-06-14 10:57:09.955 27036-27036/? A/m.xxx.activity: java_vm_ext.cc:542] from void com.wowza.gocoder.sdk.support.licensing.LicenseManager.validateLicenseKey(java.lang.String, java.lang.String, com.wowza.gocoder.sdk.support.licensing.LicenseManager)
2019-06-14 10:57:09.955 27036-27036/? A/m.xxx.activity: java_vm_ext.cc:542] "main" prio=5 tid=1 Runnable
2019-06-14 10:57:09.955 27036-27036/? A/m.xxx.activity: java_vm_ext.cc:542] | group="main" sCount=0 dsCount=0 flags=0 obj=0x7508f4b8 self=0x714fa14c00
2019-06-14 10:57:09.955 27036-27036/? A/m.xxx.activity: java_vm_ext.cc:542] | sysTid=27036 nice=-10 cgrp=default sched=0/0 handle=0x71d60b5560
2019-06-14 10:57:09.955 27036-27036/? A/m.xxx.activity: java_vm_ext.cc:542] | state=R schedstat=( 827780428 1749766 542 ) utm=71 stm=11 core=5 HZ=100
2019-06-14 10:57:09.955 27036-27036/? A/m.xxx.activity: java_vm_ext.cc:542] | stack=0x7fcbc5b000-0x7fcbc5d000 stackSize=8MB
2019-06-14 10:57:09.955 27036-27036/? A/m.xxx.activity: java_vm_ext.cc:542] | held mutexes= "mutator lock"(shared held)

```

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<div class="post-metadata">

**Author:** ![Rose\_Power-Wowza\_Com](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/rose_power-wowza_com/32/431_2.png) [@Rose\_Power-Wowza\_Com](https://community.wowza.com/u/Rose_Power-Wowza_Com)\
**Post date:** [June 14, 2019, 7:48pm UTC](https://community.wowza.com/t/license-error-when-build-android-gocoder-sdk-using-release-mode/53511/2 "2019-06-14T19:48:31Z")

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Let me look into this for you right now.

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<div class="post-metadata">

**Author:** ![Rose\_Power-Wowza\_Com](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/rose_power-wowza_com/32/431_2.png) [@Rose\_Power-Wowza\_Com](https://community.wowza.com/u/Rose_Power-Wowza_Com)\
**Post date:** [June 14, 2019, 8:50pm UTC](https://community.wowza.com/t/license-error-when-build-android-gocoder-sdk-using-release-mode/53511/3 "2019-06-14T20:50:26Z")

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Hi [@agung cz](http://community.wowza.com/community/answers/51951/post.html#), I checked and your SDK license is valid, but your Engine trial shows as expired as of June 4th. You can get another on easily here:

[https://www.wowza.com/media-server/developers/license](https://www.wowza.com/media-server/developers/license)

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<div class="post-metadata">

**Author:** ![agung\_cz](https://avatars.discourse-cdn.com/v4/letter/a/fbc32d/32.png) [@agung\_cz](https://community.wowza.com/u/agung_cz)\
**Post date:** [June 17, 2019, 2:53am UTC](https://community.wowza.com/t/license-error-when-build-android-gocoder-sdk-using-release-mode/53511/4 "2019-06-17T02:53:19Z")

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That error code was from my colleague since he was in charge to build in release-mode.

This morning we solved the problem by skipping the minify option when build android. Then the app able to run smoothly

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<div class="post-metadata">

**Author:** ![Rose\_Power-Wowza\_Com](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/rose_power-wowza_com/32/431_2.png) [@Rose\_Power-Wowza\_Com](https://community.wowza.com/u/Rose_Power-Wowza_Com)\
**Post date:** [June 19, 2019, 10:58pm UTC](https://community.wowza.com/t/license-error-when-build-android-gocoder-sdk-using-release-mode/53511/5 "2019-06-19T22:58:02Z")

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ok thanks for the update- appreciate it.