Sample project doesn't work once OsmDroid project is added

[kjeremy]

I have a sample project that pulls in a bindings project called ColorPicker (from https://code.google.com/p/color-picker-view/) this works great with Xamguard. Once I add OsmDroid bindings as a reference Proguard fails to work.

Sample project is at: https://www.dropbox.com/s/bo3zh8662gv1t6q/ColorPickerDemo.zip?dl=0

To trigger the bug you can build in release and notice that everything works. If you then add a reference to OsmDroid for the ColorPickerDemo project ProGuard will give you errors about not being able to find the color picker.

[Cheesebaron]

If you need a C# color picker look here: https://github.com/Cheesebaron/MonoDroid.ColorPickers :) Might need a bit of time to get to work in Xamarin.Android as it has been left untouched for quite a while.

[kjeremy]

That's fine but it isn't the issue I'm having. Once you add the reference
you can't build the project.

On Thu, Oct 30, 2014 at 7:57 AM, Tomasz Cielecki notifications@github.com
wrote:

If you need a C# color picker look here:
https://github.com/Cheesebaron/MonoDroid.ColorPickers :) Might need a bit
of time to get to work in Xamarin.Android as it has been left untouched for
quite a while.

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#7 (comment).

[Cheesebaron]

So it is a problem with multiple binding project references? Or is it directly related to OSM? Would be awesome if you narrowed it down a bit more :)

[kjeremy]

I THINK It's multiple binding project references but I'm not sure.
There's a link to the sample project in the issue.

On Thu, Oct 30, 2014 at 9:37 AM, Tomasz Cielecki notifications@github.com
wrote:

So it is a problem with multiple binding project references? Or is it
directly related to OSM? Would be awesome if you narrowed it down a bit
more :)

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#7 (comment).

[roosmaa]

For me Proguard is failing with the following error message:

    Target _RunProguard:
        Moving library project jar ColorPicker/library_project_imports/bin/classes.jar to obj/Release/android/proguard/tmp/library_projects/ColorPicker/library_project_imports/bin
        Tool /Users/mart/Android/SDK/tools/proguard/bin/proguard.sh execution started with arguments: -injars obj/Release/android/bin/classes -outjar obj/Release/android/proguard/java -injars obj/Release/android/proguard/tmp/library_projects -outjar obj/Release/android/proguard/library_projects -libraryjars /Users/mart/Android/SDK/platforms/android-15/android.jar -libraryjars /Library/Frameworks/Mono.framework/External/xbuild-frameworks/MonoAndroid/v4.0.3/mono.android.jar -include obj/Release/proguard-generated.cfg -include Proguard.cfg 
        ProGuard, version 4.7
        Reading program directory [/tmp/ColorPickerDemo/ColorPickerDemo/obj/Release/android/bin/classes]
        Error: Can't read [/tmp/ColorPickerDemo/ColorPickerDemo/obj/Release/android/bin/classes] (Can't process class [afzkl/development/colorpickerview/R$attr.class] (Unsupported class version number [52.0] (maximum 51.0, Java 1.7)))
/tmp/ColorPickerDemo/packages/XamGuard.1.0.2/Proguard.targets: error : Tool exited with code: 1. Output: ProGuard, version 4.7
Reading program directory [/tmp/ColorPickerDemo/ColorPickerDemo/obj/Release/android/bin/classes]
Error: Can't read [/tmp/ColorPickerDemo/ColorPickerDemo/obj/Release/android/bin/classes] (Can't process class [afzkl/development/colorpickerview/R$attr.class] (Unsupported class version number [52.0] (maximum 51.0, Java 1.7)))

    Task "Proguard" execution -- FAILED

This seems to be related to the Java SDK version. I'm guessing the ColorPicker binding project uses Java code compiled with Java 8, whereas Proguard (and most of Android?) expects Java 7 (or was it 6 even?).

Anyway, as the OsmDroid project wasn't referenced by the ColorPickerDemo, I'm guessing this is not what is happening at your end.

Can you post the Proguard output you're getting [from the Build Output tab/window]? (Like the one I posted above)

[kjeremy]

Odd. I only have Java 7 installed.

On Thu, Oct 30, 2014 at 8:59 PM, Mart Roosmaa notifications@github.com
wrote:

For me Proguard is failing with the following error message:

Target _RunProguard:
    Moving library project jar ColorPicker/library_project_imports/bin/classes.jar to obj/Release/android/proguard/tmp/library_projects/ColorPicker/library_project_imports/bin
    Tool /Users/mart/Android/SDK/tools/proguard/bin/proguard.sh execution started with arguments: -injars obj/Release/android/bin/classes -outjar obj/Release/android/proguard/java -injars obj/Release/android/proguard/tmp/library_projects -outjar obj/Release/android/proguard/library_projects -libraryjars /Users/mart/Android/SDK/platforms/android-15/android.jar -libraryjars /Library/Frameworks/Mono.framework/External/xbuild-frameworks/MonoAndroid/v4.0.3/mono.android.jar -include obj/Release/proguard-generated.cfg -include Proguard.cfg
    ProGuard, version 4.7
    Reading program directory [/tmp/ColorPickerDemo/ColorPickerDemo/obj/Release/android/bin/classes]
    Error: Can't read [/tmp/ColorPickerDemo/ColorPickerDemo/obj/Release/android/bin/classes] (Can't process class [afzkl/development/colorpickerview/R$attr.class] (Unsupported class version number [52.0] (maximum 51.0, Java 1.7)))

/tmp/ColorPickerDemo/packages/XamGuard.1.0.2/Proguard.targets: error : Tool exited with code: 1. Output: ProGuard, version 4.7
Reading program directory [/tmp/ColorPickerDemo/ColorPickerDemo/obj/Release/android/bin/classes]
Error: Can't read [/tmp/ColorPickerDemo/ColorPickerDemo/obj/Release/android/bin/classes](Can't process class [afzkl/development/colorpickerview/R$attr.class] %28Unsupported class version number [52.0] %28maximum 51.0, Java 1.7%29%29)

Task "Proguard" execution -- FAILED

This seems to be related to the Java SDK version. I'm guessing the
ColorPicker binding project uses Java code compiled with Java 8, whereas
Proguard (and most of Android?) expects Java 7 (or was it 6 even?).

Anyway, as the OsmDroid project wasn't referenced by the ColorPickerDemo,
I'm guessing this is not what is happening at your end.

Can you post the Proguard output you're getting [from the Build Output
tab/window]? (Like the one I posted above)

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#7 (comment).