# Proguard problem?

**URL:** <https://community.hivemq.com/t/proguard-problem/483>\
**Category:** HiveMQ Client Library\
**Created:** [March 23, 2021, 12:19pm UTC](https://community.hivemq.com/t/proguard-problem/483 "2021-03-23T12:19:05Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![AlessandroCaliaro](https://avatars.discourse-cdn.com/v4/letter/a/77aa72/32.png) [@AlessandroCaliaro](https://community.hivemq.com/u/AlessandroCaliaro)\
**Post date:** [March 23, 2021, 12:19pm UTC](https://community.hivemq.com/t/proguard-problem/483/1 "2021-03-23T12:19:05Z")

</div>

Hi

In my android app I have these exceptions

java.lang.NoSuchMethodException: bind [interface f.b.c.o, class java.net.SocketAddress, interface f.b.c.b0]  
at java.lang.Class.getMethod(Class.java:1981)

Is it a proguard problem?  
I have applied the instructions in

> **[Android](https://hivemq.github.io/hivemq-mqtt-client/docs/installation/android/)**
>
> A fast, asynchronous, reactive mqtt client library

Alessandro