[Fire HD 6 and 7 Q&A, Help & Troubleshooting] gamerlamer:
Ok, first of all.. I'm a major idiot who tried to be smart and understand the inner workings of android.. Long story short.. I deleted the base.apk under data/app for xposed.. I thought if I just got the apk of the same version I have, it would just be replaced, but xposed won't launch.. Base.apk doesn't appear anymore.. I noticed the apk I downloaded from the guide i used to root from dolooper for newbies was a different package name, but the same version.. so I ended up installing the apk (from in android and not flash.. I forgot that's how it has to be installed.. Duh.) Anyway, I was hoping not to be having to post this.. I feel like a real ass, but I'm desperate now after looking hours myself for a fix, and need help from someone who knows what they're doing and can hopefully save me.. I rely a lot on this device, and I hope I haven't ruined it.

So where I am at now.. It's strange, but playstore still works.. So I guess xdxposed is fine, but I also use greenify which not surprisingly, doesn't. So it's had some ramifications, but seemingly fixable.. I'm just scared that when I'll have to inevitably restart the device it'll go into a boot loop or something.. Also, under apps manager it says it's not even technically installed.. It's icon is default android and it says the apk is 0 bytes.. It shows up everywhere else as installed though.. But like I said.. Just won't launch when I press the icon. I have a feeling that maybe it actually does just need a reboot, but like I said nervous to try.. Anyway.. I think that's it.. Hoping someone can help me.. Thanks.

P.S. I grabbed this from the log.. Hopefully it can help and she'd some light on the issue to someone who understands it.

03-11 00:48:02.881 E/Xposed (26241): de.robv.android.xposed.XposedHelpers$ClassNotFoundError: java.lang.ClassNotFoundException: de.robv.android.xposed.installer.XposedApp

03-11 00:48:02.881 E/Xposed (26241): at de.robv.android.xposed.XposedHelpers.findClass(XposedHelpers.java:54)

03-11 00:48:02.881 E/Xposed (26241): at de.robv.android.xposed.XposedHelpers.findAndHookMethod(XposedHelpers.java:138)

03-11 00:48:02.881 E/Xposed (26241): at de.robv.android.xposed.XposedBridge.hookXposedInstaller(XposedBridge.java:411)

03-11 00:48:02.881 E/Xposed (26241): at de.robv.android.xposed.XposedBridge.access$500(XposedBridge.java:55)

03-11 00:48:02.881 E/Xposed (26241): at de.robv.android.xposed.XposedBridge$1.beforeHookedMethod(XposedBridge.java:177)

03-11 00:48:02.881 E/Xposed (26241): at de.robv.android.xposed.XposedBridge.handleHookedMethod(XposedBridge.java:648)

03-11 00:48:02.881 E/Xposed (26241): at android.app.ActivityThread.handleBindApplication()

03-11 00:48:02.881 E/Xposed (26241): at android.app.ActivityThread.access$1500(ActivityThread.java:161)

03-11 00:48:02.881 E/Xposed (26241): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1382)

03-11 00:48:02.881 E/Xposed (26241): at android.os.Handler.dispatchMessage(Handler.java:102)

03-11 00:48:02.881 E/Xposed (26241): at android.os.Looper.loop(Looper.java:135)

03-11 00:48:02.881 E/Xposed (26241): at android.app.ActivityThread.main(ActivityThread.java:5458)

03-11 00:48:02.881 E/Xposed (26241): at java.lang.reflect.Method.invoke(Native Method)

03-11 00:48:02.881 E/Xposed (26241): at java.lang.reflect.Method.invoke(Method.java:372)

03-11 00:48:02.881 E/Xposed (26241): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:950)

03-11 00:48:02.881 E/Xposed (26241): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:745)

03-11 00:48:02.881 E/Xposed (26241): at de.robv.android.xposed.XposedBridge.main(XposedBridge.java:115)

03-11 00:48:02.881 E/Xposed (26241): Caused by: java.lang.ClassNotFoundException: de.robv.android.xposed.installer.XposedApp

03-11 00:48:02.881 E/Xposed (26241): at java.lang.Class.classForName(Native Method)

03-11 00:48:02.881 E/Xposed (26241): at java.lang.Class.forName(Class.java:306)

03-11 00:48:02.881 E/Xposed (26241): at external.org.apache.commons.lang3.ClassUtils.getClass(ClassUtils.java:823)

03-11 00:48:02.881 E/Xposed (26241): at de.robv.android.xposed.XposedHelpers.findClass(XposedHelpers.java:52)

03-11 00:48:02.881 E/Xposed (26241): ... 16 more

03-11 00:48:02.881 E/Xposed (26241): Caused by: java.lang.ClassNotFoundException: Didn't find class "de.robv.android.xposed.installer.XposedApp" on path: DexPathList[[zip file "/system/priv-app/MetricsApi/MetricsApi.apk", zip file "/system/priv-app/com.amazon.dp.logger/com.amazon.dp.logger.apk"],nativeLibraryDirectories=[/vendor/lib, /system/lib]]

03-11 00:48:02.881 E/Xposed (26241): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)

03-11 00:48:02.881 E/Xposed (26241): at java.lang.ClassLoader.loadClass(ClassLoader.java:511)

03-11 00:48:02.881 E/Xposed (26241): at java.lang.ClassLoader.loadClass(ClassLoader.java:469)

03-11 00:48:02.881 E/Xposed (26241): ... 20 more

03-11 00:48:02.881 E/Xposed (26241): Suppressed: java.lang.ClassNotFoundException: de.robv.android.xposed.installer.XposedApp

03-11 00:48:02.881 E/Xposed (26241): at java.lang.Class.classForName(Native Method)

03-11 00:48:02.881 E/Xposed (26241): at java.lang.BootClassLoader.findClass(ClassLoader.java:781)

03-11 00:48:02.881 E/Xposed (26241): at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)

03-11 00:48:02.881 E/Xposed (26241): at java.lang.ClassLoader.loadClass(ClassLoader.java:504)

03-11 00:48:02.881 E/Xposed (26241): ... 21 more

03-11 00:48:02.881 E/Xposed (26241): Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available

03-11 02:07:47.421 E/Xposed (11268): de.robv.android.xposed.XposedHelpers$ClassNotFoundError: java.lang.ClassNotFoundException: de.robv.android.xposed.installer.XposedApp

03-11 02:07:47.421 E/Xposed (11268): at de.robv.android.xposed.XposedHelpers.findClass(XposedHelpers.java:54)

03-11 02:07:47.421 E/Xposed (11268): at de.robv.android.xposed.XposedHelpers.findAndHookMethod(XposedHelpers.java:138)

03-11 02:07:47.421 E/Xposed (11268): at de.robv.android.xposed.XposedBridge.hookXposedInstaller(XposedBridge.java:411)

03-11 02:07:47.421 E/Xposed (11268): at de.robv.android.xposed.XposedBridge.access$500(XposedBridge.java:55)

03-11 02:07:47.421 E/Xposed (11268): at de.robv.android.xposed.XposedBridge$1.beforeHookedMethod(XposedBridge.java:177)

03-11 02:07:47.421 E/Xposed (11268): at de.robv.android.xposed.XposedBridge.handleHookedMethod(XposedBridge.java:648)

03-11 02:07:47.421 E/Xposed (11268): at android.app.ActivityThread.handleBindApplication()

03-11 02:07:47.421 E/Xposed (11268): at android.app.ActivityThread.access$1500(ActivityThread.java:161)

03-11 02:07:47.421 E/Xposed (11268): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1382)

03-11 02:07:47.421 E/Xposed (11268): at android.os.Handler.dispatchMessage(Handler.java:102)

03-11 02:07:47.421 E/Xposed (11268): at android.os.Looper.loop(Looper.java:135)

03-11 02:07:47.421 E/Xposed (11268): at android.app.ActivityThread.main(ActivityThread.java:5458)

03-11 02:07:47.421 E/Xposed (11268): at java.lang.reflect.Method.invoke(Native Method)

03-11 02:07:47.421 E/Xposed (11268): at java.lang.reflect.Method.invoke(Method.java:372)

03-11 02:07:47.421 E/Xposed (11268): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:950)

03-11 02:07:47.421 E/Xposed (11268): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:745)

03-11 02:07:47.421 E/Xposed (11268): at de.robv.android.xposed.XposedBridge.main(XposedBridge.java:115)

03-11 02:07:47.421 E/Xposed (11268): Caused by: java.lang.ClassNotFoundException: de.robv.android.xposed.installer.XposedApp

03-11 02:07:47.421 E/Xposed (11268): at java.lang.Class.classForName(Native Method)

03-11 02:07:47.421 E/Xposed (11268): at java.lang.Class.forName(Class.java:306)

03-11 02:07:47.421 E/Xposed (11268): at external.org.apache.commons.lang3.ClassUtils.getClass(ClassUtils.java:823)

03-11 02:07:47.421 E/Xposed (11268): at de.robv.android.xposed.XposedHelpers.findClass(XposedHelpers.java:52)

03-11 02:07:47.421 E/Xposed (11268): ... 16 more

03-11 02:07:47.421 E/Xposed (11268): Caused by: java.lang.ClassNotFoundException: Didn't find class "de.robv.android.xposed.installer.XposedApp" on path: DexPathList[[zip file "/system/priv-app/MetricsApi/MetricsApi.apk", zip file "/system/priv-app/com.amazon.dp.logger/com.amazon.dp.logger.apk"],nativeLibraryDirectories=[/vendor/lib, /system/lib]]

03-11 02:07:47.421 E/Xposed (11268): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)

03-11 02:07:47.421 E/Xposed (11268): at java.lang.ClassLoader.loadClass(ClassLoader.java:511)

03-11 02:07:47.421 E/Xposed (11268): at java.lang.ClassLoader.loadClass(ClassLoader.java:469)

03-11 02:07:47.421 E/Xposed (11268): ... 20 more

03-11 02:07:47.421 E/Xposed (11268): Suppressed: java.lang.ClassNotFoundException: de.robv.android.xposed.installer.XposedApp

03-11 02:07:47.421 E/Xposed (11268): at java.lang.Class.classForName(Native Method)

03-11 02:07:47.421 E/Xposed (11268): at java.lang.BootClassLoader.findClass(ClassLoader.java:781)

03-11 02:07:47.421 E/Xposed (11268): at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)

03-11 02:07:47.421 E/Xposed (11268): at java.lang.ClassLoader.loadClass(ClassLoader.java:504)

03-11 02:07:47.421 E/Xposed (11268): ... 21 more

03-11 02:07:47.421 E/Xposed (11268): Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available