Error while deploying project (QT for Android)

Aayushi

As I run my project in QT creator, I get the following error:
W System.err: java.lang.ClassNotFoundException: Didn't find class "org.qtproject.example.jnimessenger.JniMessenger" on path: DexPathList[[],nativeLibraryDirectories=[/system/lib64, /system/vendor/lib64]]
W System.err: at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:134)
W System.err: at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
W System.err: at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
W System.err: at org.qtproject.qt5.android.QtNative.startQtApplication(Native Method)
W System.err: at org.qtproject.qt5.android.QtNative$7.run(QtNative.java:620)
W System.err: at org.qtproject.qt5.android.QtThread$1.run(QtThread.java:61)
W System.err: at java.lang.Thread.run(Thread.java:764)
F ra_cart_manage: java_vm_ext.cc:542] JNI DETECTED ERROR IN APPLICATION: java_object == null
F ra_cart_manage: java_vm_ext.cc:542] in call to GetObjectClass

qt error.PNG
What could possibly be wrong?
Edit: I can see the JNIMessenger.java file in android studio but not in QT Creator:
android qt.PNG
qt android.PNG