MDX Toolkit version: 10.8.5 on-prem and cloud.

-This article explains how to fix the issue on the on-prem version-

When MDX Toolkit is trying to re-compile it shows the following error:

"Re-compile the app using APKTool 2.3.1 and it fails"

Complete log of the error is shown below:

De-Compiling the App using latest apktool 2.3.1 : 
E:\Workspace\apktool-install-windows>java -jar apktool.jar d -s android_app.apk 
I: Using Apktool 2.3.1 on android_app.apk 
I: Loading resource table... 
I: Decoding AndroidManifest.xml with resources... 
I: Loading resource table from file: C:\Users\user\AppData\Local\apktool\framework\1.apk 
I: Regular manifest package... 
I: Decoding file-resources... 
I: Decoding values */* XMLs... 
I: Copying raw classes.dex file... 
I: Copying assets and libs... 
I: Copying unknown files... 
I: Copying original files... 

Re-compile the app using APKTool 2.3.1 and it fails : 
E:\Workspace\apktool-install-windows>java -jar apktool.jar b android_app 
I: Using Apktool 2.3.1 
I: Copying android_app classes.dex file... 
I: Checking whether resources has changed... 
I: Building resources... 
W: E:\Workspace\apktool-install-windows\android_app\res\layout-v26\abc_screen_toolbar.xml:5: error: No resource identifier found for attribute 'keyboardNavigationCluster' in package 'android 

Exception in thread "main" W: 
brut.androlib.AndrolibException: brut.androlib.AndrolibException: brut.common.BrutException: could not exec (exit code = 1): [C:\Users\user\AppData\Local\Temp\brut_util_Jar_3317229960825218523.tm
, p, --forced-package-id, 127, --min-sdk-version, 19, --target-sdk-version, 25, --version-code, 12640, --version-name, 3.4.0, --no-version-vectors, -F, C:\Users\user\AppData\Local\Temp\APKTOOL449 
799333282341642.tmp, -0, arsc, -0, webp, -0, arsc, -I, C:\Users\user\AppData\Local\apktool\framework\1.apk, -S, E:\Workspace\apktool-install-windows\android_app\res, -M, E:\Workspace\a 
ktool-install-windows\android_app\AndroidManifest.xml] 
at brut.androlib.Androlib.buildResourcesFull(Androlib.java:492) 
at brut.androlib.Androlib.buildResources(Androlib.java:426) 
at brut.androlib.Androlib.build(Androlib.java:305) 
at brut.androlib.Androlib.build(Androlib.java:270) 
at brut.apktool.Main.cmdBuild(Main.java:227) 
at brut.apktool.Main.main(Main.java:75) 
Caused by: brut.androlib.AndrolibException: brut.common.BrutException: could not exec (exit code = 1): [C:\Users\user\AppData\Local\Temp\brut_util_Jar_3317229960825218523.tmp, p, --forced-package 
id, 127, --min-sdk-version, 19, --target-sdk-version, 25, --version-code, 12640, --version-name, 3.4.0, --no-version-vectors, -F, C:\Users\user\AppData\Local\Temp\APKTOOL4492799333282341642.tmp,
0, arsc, -0, webp, -0, arsc, -I, C:\Users\user\AppData\Local\apktool\framework\1.apk, -S, E:\Workspace\apktool-install-windows\android_app\res, -M, E:\Workspace\apktool-install-windows 
android_app\AndroidManifest.xml] 
at brut.androlib.res.AndrolibResources.aaptPackage(AndrolibResources.java:456)
at brut.androlib.Androlib.buildResourcesFull(Androlib.java:478) 
... 5 more 
Caused by: brut.common.BrutException: could not exec (exit code = 1): [C:\Users\user\AppData\Local\Temp\brut_util_Jar_3317229960825218523.tmp, p, --forced-package-id, 127, --min-sdk-version, 19, 
-target-sdk-version, 25, --version-code, 12640, --version-name, 3.4.0, --no-version-vectors, -F, C:\Users\user\AppData\Local\Temp\APKTOOL4492799333282341642.tmp, -0, arsc, -0, webp, -0, arsc, -I, 
C:\Users\user\AppData\Local\apktool\framework\1.apk, -S, E:\Workspace\apktool-install-windows\android_app\res, -M, E:\Workspace\apktool-install-windows\android_app\AndroidMani 
est.xml] 
at brut.util.OS.exec(OS.java:95) 
at brut.androlib.res.AndrolibResources.aaptPackage(AndrolibResources.java:450)
... 6 more 
E:\Workspace\apktool-install-windows> 

Problem Cause