Bonjour,

Mon application crash, et je ne comprends pas le message d'erreur. Pouvez-vous m'aider s'il vous plaît ?

Voici la stacktrace :

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FATAL EXCEPTION: main
                                                                             Process: projetrev.com.personcapparis, PID: 4978
                                                                             java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{projetrev.com.personcapparis/projetrev.com.personcapparis.DetectActivity}: java.lang.ClassNotFoundException: Didn't find class "projetrev.com.personcapparis.DetectActivity" on path: DexPathList[[zip file "/data/app/projetrev.com.personcapparis-1/base.apk"],nativeLibraryDirectories=[/vendor/lib, /system/lib]]
                                                                                 at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2555)
                                                                                 at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2773)
                                                                                 at android.app.ActivityThread.access$900(ActivityThread.java:177)
                                                                                 at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1434)
                                                                                 at android.os.Handler.dispatchMessage(Handler.java:102)
                                                                                 at android.os.Looper.loop(Looper.java:135)
                                                                                 at android.app.ActivityThread.main(ActivityThread.java:5930)
                                                                                 at java.lang.reflect.Method.invoke(Native Method)
                                                                                 at java.lang.reflect.Method.invoke(Method.java:372)
                                                                                 at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1405)
                                                                                 at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1200)
                                                                              Caused by: java.lang.ClassNotFoundException: Didn't find class "projetrev.com.personcapparis.DetectActivity" on path: DexPathList[[zip file "/data/app/projetrev.com.personcapparis-1/base.apk"],nativeLibraryDirectories=[/vendor/lib, /system/lib]]
                                                                                 at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
                                                                                 at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
                                                                                 at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
                                                                                 at android.app.Instrumentation.newActivity(Instrumentation.java:1078)
                                                                                 at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2545)
                                                                                 at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2773)*
                                                                                 at android.app.ActivityThread.access$900(ActivityThread.java:177)*
                                                                                 at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1434)*
                                                                                 at android.os.Handler.dispatchMessage(Handler.java:102)*
                                                                                 at android.os.Looper.loop(Looper.java:135)*
                                                                                 at android.app.ActivityThread.main(ActivityThread.java:5930)*
                                                                                 at java.lang.reflect.Method.invoke(Native Method)*
                                                                                 at java.lang.reflect.Method.invoke(Method.java:372)*
                                                                                 at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1405)*
                                                                                 at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1200)*
                                                                             	Suppressed: java.lang.ClassNotFoundException: projetrev.com.personcapparis.DetectActivity
                                                                                 at java.lang.Class.classForName(Native Method)
                                                                                 at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
                                                                                 at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
                                                                                 at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
                                                                                 		... 13 more
                                                                              Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available