Android build problems.

Hi all, running into this error attempting to compile for Android, I can compile for Windows fine.

I've tried downgrading the SDK version (I'm using 23.03 as another poster stated that anything above this had issues in another thread), along with reimporting the project etc.

Using JDK8u112 and the latest version of Android Studio, probably something small and simple to fix that i'm overlooking but any help would be great.

 CommandInvokationFailure: Failed to re-package resources.
     C:\Users\xxxxx\AppData\Local\Android\sdk\build-tools\23.0.3\aapt.exe package --auto-add-overlay -v -f -m -J gen -M AndroidManifest.xml -S "res" -I "C:/Users/xxxxx/AppData/Local/Android/sdk\platforms\android-24\android.jar" -F bin/resources.ap_
 stderr[
     ERROR: Unable to open class file gen\con\xxxxx\projectname\R.java: No such file or directory
     ]
     stdout[
     Configurations:
      (default)
      v14
      v21
      ldpi-v4
      mdpi-v4
      hdpi-v4
      xhdpi-v4
      xxhdpi-v4
      xxxhdpi-v4
     
     Files:
       drawable\app_banner.png
         Src: (xhdpi-v4) res\drawable-xhdpi\app_banner.png
       drawable\app_icon.png
         Src: (ldpi-v4) res\drawable-ldpi\app_icon.png
         Src: (mdpi-v4) res\drawable-mdpi\app_icon.png
         Src: (hdpi-v4) res\drawable-hdpi\app_icon.png
         Src: (xhdpi-v4) res\drawable-xhdpi\app_icon.png
         Src: (xxhdpi-v4) res\drawable-xxhdpi\app_icon.png
         Src: (xxxhdpi-v4) res\drawable-xxxhdpi\app_icon.png
       values\strings.xml
         Src: () res\values\strings.xml
       values\styles.xml
         Src: () res\values\styles.xml
         Src: (v14) res\values-v14\styles.xml
         Src: (v21) res\values-v21\styles.xml
       AndroidManifest.xml
         Src: () AndroidManifest.xml
     
     Resource Dirs:
       Type drawable
         drawable\app_banner.png
           Src: (xhdpi-v4) res\drawable-xhdpi\app_banner.png
         drawable\app_icon.png
           Src: (ldpi-v4) res\drawable-ldpi\app_icon.png
           Src: (mdpi-v4) res\drawable-mdpi\app_icon.png
           Src: (hdpi-v4) res\drawable-hdpi\app_icon.png
           Src: (xhdpi-v4) res\drawable-xhdpi\app_icon.png
           Src: (xxhdpi-v4) res\drawable-xxhdpi\app_icon.png
           Src: (xxxhdpi-v4) res\drawable-xxxhdpi\app_icon.png
       Type values
         values\strings.xml
           Src: () res\values\strings.xml
         values\styles.xml
           Src: () res\values\styles.xml
           Src: (v14) res\values-v14\styles.xml
           Src: (v21) res\values-v21\styles.xml
     Including resources from package: C:\Users\xxxxx\AppData\Local\Android\sdk\platforms\android-24\android.jar
     applyFileOverlay for drawable
     applyFileOverlay for layout
     applyFileOverlay for anim
     applyFileOverlay for animator
     applyFileOverlay for interpolator
     applyFileOverlay for transition
     applyFileOverlay for xml
     applyFileOverlay for raw
     applyFileOverlay for color
     applyFileOverlay for menu
     applyFileOverlay for mipmap
     Processing image: res\drawable-xhdpi\app_banner.png
     Processing image: res\drawable-ldpi\app_icon.png
         (processed image res\drawable-ldpi\app_icon.png: 90% size of source)
     Processing image: res\drawable-mdpi\app_icon.png
     Processing image: res\drawable-hdpi\app_icon.png
         (processed image res\drawable-hdpi\app_icon.png: 89% size of source)
     Processing image: res\drawable-xhdpi\app_icon.png
     Processing image: res\drawable-xxhdpi\app_icon.png
         (processed image res\drawable-mdpi\app_icon.png: 87% size of source)
     Processing image: res\drawable-xxxhdpi\app_icon.png
         (processed image res\drawable-xhdpi\app_icon.png: 87% size of source)
         (processed image res\drawable-xxhdpi\app_icon.png: 88% size of source)
         (processed image res\drawable-xhdpi\app_banner.png: 93% size of source)
         (processed image res\drawable-xxxhdpi\app_icon.png: 91% size of source)
         (new resource id app_banner from xhdpi-v4\drawable\app_banner.png #generated)
         (new resource id app_icon from ldpi-v4\drawable\app_icon.png #generated)
         (new resource id app_icon from mdpi-v4\drawable\app_icon.png #generated)
         (new resource id app_icon from hdpi-v4\drawable\app_icon.png #generated)
         (new resource id app_icon from xhdpi-v4\drawable\app_icon.png #generated)
         (new resource id app_icon from xxhdpi-v4\drawable\app_icon.png #generated)
         (new resource id app_icon from xxxhdpi-v4\drawable\app_icon.png #generated)
     ]
     UnityEditor.Android.Command.Run (System.Diagnostics.ProcessStartInfo psi, UnityEditor.Android.WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg)
     UnityEditor.Android.PostProcessor.Tasks.TasksCommon.Exec (System.String command, System.String args, System.String workingdir, System.String errorMsg, Int32 retiresOnFailure)