java.lang.NoClassDefFoundError: org.dom4j.Namespace

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java.lang.NoClassDefFoundError: org.dom4j.Namespace
at org.apache.poi.openxml4j.opc.internal.unmarshallers.PackagePropertiesUnmarshaller.(PackagePropertiesUnmarshaller.java:49)
at org.apache.poi.openxml4j.opc.OPCPackage.init(OPCPackage.java:154)
at org.apache.poi.openxml4j.opc.OPCPackage.(OPCPackage.java:141)
at org.apache.poi.openxml4j.opc.Package.(Package.java:37)
at org.apache.poi.openxml4j.opc.ZipPackage.(ZipPackage.java:127)
at org.apache.poi.openxml4j.opc.OPCPackage.open(OPCPackage.java:251)
at idzyns.alburraq.amltraining.utils.ExcelValues.onRead(ExcelValues.java:137)
at idzyns.alburraq.amltraining.CreateEventActivity.onActivityResult(CreateEventActivity.java:355)
at android.app.Activity.dispatchActivityResult(Activity.java:5456)
at android.app.ActivityThread.deliverResults(ActivityThread.java:3549)
at android.app.ActivityThread.handleSendResult(ActivityThread.java:3596)
at android.app.ActivityThread.access$1300(ActivityThread.java:151)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1369)
at android.os.Handler.dispatchMessage(Handler.java:110)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:5292)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:824)

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