Good bug reports include a failing test! Creating a minimal project for reproducing the issue will help us to fix it fast.
Loading the Dex file from /mnt/sdcard/ failing with below exception.
How to load dex file from external storage
2020-07-26 01:45:44.828 7982-7982/com.technicolor.rtspTestApp W/lor.rtspTestAp: Accessing hidden field Ldalvik/system/DexPathList;->dexElements:[Ldalvik/system/DexPathList$Element; (light greylist, reflection)
2020-07-26 01:45:44.906 7982-7982/com.technicolor.rtspTestApp W/DexInjector: Exception in makeDexElement
java.io.IOException: No original dex files found for dex location /mnt/sdcard/dex/rtspClient.dex
at dalvik.system.DexFile.openDexFileNative(Native Method)
at dalvik.system.DexFile.openDexFile(DexFile.java:354)
at dalvik.system.DexFile.(DexFile.java:143)
at dalvik.system.DexFile.loadDex(DexFile.java:202)
at dalvik.system.DexPathList.loadDexFile(DexPathList.java:397)
at dalvik.system.DexPathList.makeDexElements(DexPathList.java:344)
at dalvik.system.DexPathList.makeDexElements(DexPathList.java:321)
at dalvik.system.DexPathList.makePathElements(DexPathList.java:443)
at java.lang.reflect.Method.invoke(Native Method)
at app.artyomd.injector.DexInjector$V19.makeDexElements(DexInjector.java:169)
at app.artyomd.injector.DexInjector$V19.install(DexInjector.java:128)
at app.artyomd.injector.DexInjector.installSecondaryDexes(DexInjector.java:34)
at app.artyomd.injector.DexUtils.loadDex(DexUtils.java:29)
at com.technicolor.rtspTestApp.MainActivity.loadDexFiles(MainActivity.java:39)
at com.technicolor.rtspTestApp.MainActivity.onCreate(MainActivity.java:83)
at android.app.Activity.performCreate(Activity.java:7224)
at android.app.Activity.performCreate(Activity.java:7213)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1272)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2926)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3081)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1831)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:201)
at android.app.ActivityThread.main(ActivityThread.java:6810)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:547)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:873)
2020-07-26 01:45:44.907 7982-7982/com.technicolor.rtspTestApp W/lor.rtspTestAp: Accessing hidden field Ldalvik/system/DexPathList;->dexElementsSuppressedExceptions:[Ljava/io/IOException; (light greylist, reflection)
2020-07-26 01:45:44.909 7982-7982/com.technicolor.rtspTestApp W/System.err: java.io.IOException: I/O exception during makeDexElement
2020-07-26 01:45:44.911 7982-7982/com.technicolor.rtspTestApp W/System.err: at app.artyomd.injector.DexInjector$V19.install(DexInjector.java:153)
2020-07-26 01:45:44.914 7982-7982/com.technicolor.rtspTestApp W/System.err: at app.artyomd.injector.DexInjector.installSecondaryDexes(DexInjector.java:34)
2020-07-26 01:45:44.915 7982-7982/com.technicolor.rtspTestApp W/System.err: at app.artyomd.injector.DexUtils.loadDex(DexUtils.java:29)
2020-07-26 01:45:44.918 7982-7982/com.technicolor.rtspTestApp W/System.err: at com.technicolor.rtspTestApp.MainActivity.loadDexFiles(MainActivity.java:39)
2020-07-26 01:45:44.920 7982-7982/com.technicolor.rtspTestApp W/System.err: at com.technicolor.rtspTestApp.MainActivity.onCreate(MainActivity.java:83)
2020-07-26 01:45:44.921 7982-7982/com.technicolor.rtspTestApp W/System.err: at android.app.Activity.performCreate(Activity.java:7224)
2020-07-26 01:45:44.923 7982-7982/com.technicolor.rtspTestApp W/System.err: at android.app.Activity.performCreate(Activity.java:7213)
2020-07-26 01:45:44.926 7982-7982/com.technicolor.rtspTestApp W/System.err: at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1272)
2020-07-26 01:45:44.928 7982-7982/com.technicolor.rtspTestApp W/System.err: at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2926)
2020-07-26 01:45:44.930 7982-7982/com.technicolor.rtspTestApp W/System.err: at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3081)
2020-07-26 01:45:44.932 7982-7982/com.technicolor.rtspTestApp W/System.err: at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78)
2020-07-26 01:45:44.935 7982-7982/com.technicolor.rtspTestApp W/System.err: at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)
2020-07-26 01:45:44.937 7982-7982/com.technicolor.rtspTestApp W/System.err: at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)
2020-07-26 01:45:44.939 7982-7982/com.technicolor.rtspTestApp W/System.err: at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1831)
2020-07-26 01:45:44.941 7982-7982/com.technicolor.rtspTestApp W/System.err: at android.os.Handler.dispatchMessage(Handler.java:106)
2020-07-26 01:45:44.943 7982-7982/com.technicolor.rtspTestApp W/System.err: at android.os.Looper.loop(Looper.java:201)
2020-07-26 01:45:44.945 7982-7982/com.technicolor.rtspTestApp W/System.err: at android.app.ActivityThread.main(ActivityThread.java:6810)
2020-07-26 01:45:44.946 7982-7982/com.technicolor.rtspTestApp W/System.err: at java.lang.reflect.Method.invoke(Native Method)
2020-07-26 01:45:44.948 7982-7982/com.technicolor.rtspTestApp W/System.err: at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:547)
2020-07-26 01:45:44.950 7982-7982/com.technicolor.rtspTestApp W/System.err: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:873)
2020-07-26 01:45:44.976 7982-7982/com.technicolor.rtspTestApp W/System.err: Caused by: java.io.IOException: No original dex files found for dex location /mnt/sdcard/dex/rtspClient.dex
2020-07-26 01:45:44.978 7982-7982/com.technicolor.rtspTestApp W/System.err: at dalvik.system.DexFile.openDexFileNative(Native Method)
2020-07-26 01:45:44.980 7982-7982/com.technicolor.rtspTestApp W/System.err: at dalvik.system.DexFile.openDexFile(DexFile.java:354)
2020-07-26 01:45:44.982 7982-7982/com.technicolor.rtspTestApp W/System.err: at dalvik.system.DexFile.(DexFile.java:143)
2020-07-26 01:45:44.984 7982-7982/com.technicolor.rtspTestApp W/System.err: at dalvik.system.DexFile.loadDex(DexFile.java:202)
2020-07-26 01:45:44.986 7982-7982/com.technicolor.rtspTestApp W/System.err: at dalvik.system.DexPathList.loadDexFile(DexPathList.java:397)
2020-07-26 01:45:44.988 7982-7982/com.technicolor.rtspTestApp W/System.err: at dalvik.system.DexPathList.makeDexElements(DexPathList.java:344)
2020-07-26 01:45:44.990 7982-7982/com.technicolor.rtspTestApp W/System.err: at dalvik.system.DexPathList.makeDexElements(DexPathList.java:321)
2020-07-26 01:45:44.992 7982-7982/com.technicolor.rtspTestApp W/System.err: at dalvik.system.DexPathList.makePathElements(DexPathList.java:443)
2020-07-26 01:45:44.994 7982-7982/com.technicolor.rtspTestApp W/System.err: at java.lang.reflect.Method.invoke(Native Method)
2020-07-26 01:45:44.996 7982-7982/com.technicolor.rtspTestApp W/System.err: at app.artyomd.injector.DexInjector$V19.makeDexElements(DexInjector.java:169)
2020-07-26 01:45:44.998 7982-7982/com.technicolor.rtspTestApp W/System.err: at app.artyomd.injector.DexInjector$V19.install(DexInjector.java:128)
2020-07-26 01:45:44.999 7982-7982/com.technicolor.rtspTestApp W/System.err: ... 19 more
2020-07-26 01:45:45.419 7982-8014/com.technicolor.rtspTestApp I/lor.rtspTestAp: ProcessProfilingInfo new_methods=43 is saved saved_to_disk=1 resolve_classes_delay=8000