Unable to instantiate application on startup

[CurralesDragon]

Description

Really looking forward to use this, thanks for sharing.
But I'm having trouble getting an application set-up.

Once i run my app i get an exception:

E/AndroidRuntime: FATAL EXCEPTION: main
                  Process: com.example, PID: 4606
                  java.lang.RuntimeException: Unable to instantiate application com.example.exampleApplication: java.lang.ClassNotFoundException: Didn't find class "com.example.exampleApplication" on path: DexPathList[[zip file "/data/app/com.example-b2AaI9HdMFVibhYyMrBrNQ==/base.apk"],nativeLibraryDirectories=[/data/app/com.example-b2AaI9HdMFVibhYyMrBrNQ==/lib/x86, /system/lib, /vendor/lib]]
                      at android.app.LoadedApk.makeApplication(LoadedApk.java:971)
                      at android.app.ActivityThread.handleBindApplication(ActivityThread.java:5765)
                      at android.app.ActivityThread.-wrap1(Unknown Source:0)
                      at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1661)
                      at android.os.Handler.dispatchMessage(Handler.java:105)
                      at android.os.Looper.loop(Looper.java:164)
                      at android.app.ActivityThread.main(ActivityThread.java:6541)
                      at java.lang.reflect.Method.invoke(Native Method)
                      at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240)
                      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767)
                   Caused by: java.lang.ClassNotFoundException: Didn't find class "com.example.exampleApplication" on path: DexPathList[[zip file "/data/app/com.example-b2AaI9HdMFVibhYyMrBrNQ==/base.apk"],nativeLibraryDirectories=[/data/app/com.example-b2AaI9HdMFVibhYyMrBrNQ==/lib/x86, /system/lib, /vendor/lib]]
                      at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:93)
                      at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
                      at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
                      at android.app.Instrumentation.newApplication(Instrumentation.java:1086)
                      at android.app.LoadedApk.makeApplication(LoadedApk.java:965)
                      at android.app.ActivityThread.handleBindApplication(ActivityThread.java:5765) 
                      at android.app.ActivityThread.-wrap1(Unknown Source:0) 
                      at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1661) 
                      at android.os.Handler.dispatchMessage(Handler.java:105) 
                      at android.os.Looper.loop(Looper.java:164) 
                      at android.app.ActivityThread.main(ActivityThread.java:6541) 
                      at java.lang.reflect.Method.invoke(Native Method) 
                      at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240) 
                      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767) 
                  	Suppressed: java.io.IOException: Failed to open dex files from /data/app/com.example-b2AaI9HdMFVibhYyMrBrNQ==/base.apk because: Failure to verify dex file '/data/app/com.example-b2AaI9HdMFVibhYyMrBrNQ==/base.apk': Bad method handle type 7
                      at dalvik.system.DexFile.openDexFileNative(Native Method)
                      at dalvik.system.DexFile.openDexFile(DexFile.java:353)
                      at dalvik.system.DexFile.<init>(DexFile.java:100)
                      at dalvik.system.DexFile.<init>(DexFile.java:74)
                      at dalvik.system.DexPathList.loadDexFile(DexPathList.java:374)
                      at dalvik.system.DexPathList.makeDexElements(DexPathList.java:337)
                      at dalvik.system.DexPathList.<init>(DexPathList.java:157)
                      at dalvik.system.BaseDexClassLoader.<init>(BaseDexClassLoader.java:65)
                      at dalvik.system.PathClassLoader.<init>(PathClassLoader.java:64)
                      at com.android.internal.os.PathClassLoaderFactory.createClassLoader(PathClassLoaderFactory.java:43)
                      at android.app.ApplicationLoaders.getClassLoader(ApplicationLoaders.java:69)
                      at android.app.ApplicationLoaders.getClassLoader(ApplicationLoaders.java:36)
                      at android.app.LoadedApk.createOrUpdateClassLoaderLocked(LoadedApk.java:676)
                      at android.app.LoadedApk.getClassLoader(LoadedApk.java:709)
                      at android.app.LoadedApk.getResources(LoadedApk.java:936)
                      at android.app.ContextImpl.createAppContext(ContextImpl.java:2242)
                      at android.app.ActivityThread.handleBindApplication(ActivityThread.java:5672)
                      		... 8 more

Iv updated my gradle to use sdk 27, if i remove the dependency my app runs fine with no crash.
I am puzzled to what can be causing this?

Iv compiled and run your sample project and works fine

Info Required

• Which version of the library do you actually use?
  4.0.1

• Do you have the localization permission granted?

• Are you sending parameters to the activity through the bundle?
  N/A

• Could you describe what are the actions do you make to raise that error?
  Running app

• Android monitor shows any log related to the library when the error is shown?

• Any other thing that could help me to reproduce the error?

Screenshots

[CurralesDragon]

After looking at your sample project i noticed a difference in the gradle config from my project.
It appears adding:

compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }

into my config fixed the error.

Don't currently understand why this fixes it, il do some research

[ferranpons]

@nicwhitts it's needed if you have code with java 8 to have compatibility. For more info you could check this: https://stackoverflow.com/questions/16654951/gradle-sourcecompatibility-vs-targetcompatibility

I'm closing this issue since you found the solution. 😉