# Binary XML file line #2 Caused by: java.lang.ClassNotFoundException

**URL:** <https://devforum.zoom.us/t/binary-xml-file-line-2-caused-by-java-lang-classnotfoundexception/43003>\
**Category:** Android\
**Created:** [February 10, 2021, 11:44am UTC](https://devforum.zoom.us/t/binary-xml-file-line-2-caused-by-java-lang-classnotfoundexception/43003 "2021-02-10T11:44:09Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![helloparent](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/helloparent/32/16775_2.png) [@helloparent](https://devforum.zoom.us/u/helloparent)\
**Post date:** [February 10, 2021, 11:44am UTC](https://devforum.zoom.us/t/binary-xml-file-line-2-caused-by-java-lang-classnotfoundexception/43003/1 "2021-02-10T11:44:10Z")

</div>

**Description**  
SDK initializing successfully but when try to join meeting, then getting crashed, error given below.

\*_Error_  
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.helloparent/com.zipow.videobox.ConfActivityNormal}: android.view.InflateException: Binary XML file line #24 in com.helloparent:layout/zm\_conf\_main\_screen: Binary XML file line #2 in com.helloparent:layout/zm\_panel\_float\_btn: Error inflating class com.google.android.flexbox.FlexboxLayout  
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3430)  
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3594)  
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:85)  
at  
Caused by: android.view.InflateException: Binary XML file line #24 in com.helloparent:layout/zm\_conf\_main\_screen: Binary XML file line #2 in com.helloparent:layout/zm\_panel\_float\_btn: Error inflating class com.google.android.flexbox.FlexboxLayout  
Caused by: android.view.InflateException: Binary XML file line #2 in com.helloparent:layout/zm\_panel\_float\_btn: Error inflating class com.google.android.flexbox.FlexboxLayout  
Caused by: java.lang.ClassNotFoundException: com.google.android.flexbox.FlexboxLayout  
at java.lang.Class.classForName(Native Method)  
at java.lang.Class.forName(Class.java:454)  
at android.view.LayoutInflater.createView(LayoutInflater.java:813)  
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:1004)  
at android.view.LayoutInflater.parseInclude(LayoutInflater.java:1231)  
at android.view.LayoutInflater.rInflate(LayoutInflater.java:1117)  
at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:1082)  
at android.view.LayoutInflater.rInflate(LayoutInflater.java:1124)  
at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:1082)  
at android.view.LayoutInflater.rInflate(LayoutInflater.java:1124)  
at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:1082)  
at android.view.LayoutInflater.parseInclude(LayoutInflater.java:1261)  
at android.view.LayoutInflater.rInflate(LayoutInflater.java:1117)  
at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:1082)  
at android.view.LayoutInflater.rInflate(LayoutInflater.java:1124)  
at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:1082)  
at android.view.LayoutInflater.inflate(LayoutInflater.java:680)  
at android.view.LayoutInflater.inflate(LayoutInflater.java:532)  
at android.view.LayoutInflater.inflate(LayoutInflater.java:479)  
at com.android.internal.policy.PhoneWindow.setContentView(PhoneWindow.java:455)  
at android.app.Activity.setContentView(Activity.java:3468)  
at com.zipow.videobox.ConfActivityNormal.onCreate(ConfActivityNormal.java:624)  
at android.app.Activity.performCreate(Activity.java:8000)  
at android.app.Activity.performCreate(Activity.java:7984)  
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1310)  
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3403)  
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3594)  
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:85)  
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)  
2021-02-10 16:54:55.634 12661-12661/com.helloparent E/AndroidRuntime: at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)  
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2067)  
at android.os.Handler.dispatchMessage(Handler.java:106)  
at android.os.Looper.loop(Looper.java:223)  
at android.app.ActivityThread.main(ActivityThread.java:7698)  
at java.lang.reflect.Method.invoke(Native Method)  
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)  
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:952)  
Caused by: java.lang.ClassNotFoundException: Didn’t find class “com.google.android.flexbox.FlexboxLayout” on path: DexPathList[[zip file “/data/app/ ~~rQpWPNBTlVTHiuVDT5Z99A==/com.helloparent-ZMKpVC1lq\_T0YWz1CCKScg==/base.apk”, zip file “/data/app/~~ rQpWPNBTlVTHiuVDT5Z99A==/com.helloparent-ZMKpVC1lq\_T0YWz1CCKScg==/split\_config.arm64\_v8a.apk”, zip file “/data/app/~~rQpWPNBTlVTHiuVDT5Z99A==/com.helloparent-ZMKpVC1lq\_T0YWz1CCKScg==/split\_config.xhdpi.apk”],nativeLibraryDirectories=[/data/app/~~rQpWPNBTlVTHiuVDT5Z99A==/com.helloparent-ZMKpVC1lq\_T0YWz1CCKScg==/lib/arm64, /data/app/ ~~rQpWPNBTlVTHiuVDT5Z99A==/com.helloparent-ZMKpVC1lq\_T0YWz1CCKScg==/base.apk!/lib/arm64-v8a, /data/app/~~ rQpWPNBTlVTHiuVDT5Z99A==/com.helloparent-ZMKpVC1lq\_T0YWz1CCKScg==/split\_config.arm64\_v8a.apk!/lib/arm64-v8a, /data/app/~~rQpWPNBTlVTHiuVDT5Z99A==/com.helloparent-ZMKpVC1lq\_T0YWz1CCKScg==/split\_config.xhdpi.apk!/lib/arm64-v8a, /system/lib64,  
Suppressed: java.io.IOException: No original dex files found for dex location (arm64) /data/app/~~rQpWPNBTlVTHiuVDT5Z99A==/com.helloparent-ZMKpVC1lq\_T0YWz1CCKScg==/split\_config.arm64\_v8a.apk  
at dalvik.system.DexFile.openDexFileNative(Native Method)  
at dalvik.system.DexFile.openDexFile(DexFile.java:367)  
at dalvik.system.DexFile.(DexFile.java:109)  
at dalvik.system.DexFile.(DexFile.java:82)  
Suppressed: java.io.IOException: No original dex files found for dex location (arm64) /data/app/~~rQpWPNBTlVTHiuVDT5Z99A==/com.helloparent-ZMKpVC1lq\_T0YWz1CCKScg==/split\_config.xhdpi.apk  
at dalvik.system.DexFile.openDexFileNative(Native Method)  
at dalvik.system.DexFile.openDexFile(DexFile.java:367)  
at dalvik.system.DexFile.(DexFile.java:109)  
at dalvik.system.DexFile.(DexFile.java:82)

**Which version?**  
v5.2.42043.1112

---

<div class="post-metadata">

**Author:** ![jon.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/jon.zoom/32/13495_2.png) [@jon.zoom](https://devforum.zoom.us/u/jon.zoom)\
**Post date:** [February 11, 2021, 5:56pm UTC](https://devforum.zoom.us/t/binary-xml-file-line-2-caused-by-java-lang-classnotfoundexception/43003/2 "2021-02-11T17:56:51Z")

</div>

Hi @helloparent, thanks for the post.

This can be resolved by adding the following dependency to your app’s `build.gradle`:

`implementation 'com.google.android:flexbox:2.0.1'`

Thanks!

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/6/1/614bdd549b610bbaa46ff934617683a02bdaa03c.png) [@system](https://devforum.zoom.us/u/system)\
**Post date:** [March 14, 2021, 3:57am UTC](https://devforum.zoom.us/t/binary-xml-file-line-2-caused-by-java-lang-classnotfoundexception/43003/3 "2021-03-14T03:57:05Z")

</div>

Closed on March 14, 2021, 3:57am UTC

This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.