I have a working app that I've now converted to being a library project in Eclipse. When I attempt to include the library as a "Project Reference" in an empty app (no other functionality other than what it inherits from the library) it fails to build. I get the message Unable to execute dex: Multiple dex files define Lcom/facebook/android/R$attr;.
To try to work around this I tried to delete the Android Dependencies completely. But then I get a "Class not found exception" for classes in the library.
Is it possible to remove the Facebook dependency without also removing the app library dependency? I tried to delete the facebooksdk.jar file but was unable to do so since all the buttons are grayed out. (see screen capture below)
I also tried simply unchecking "Android Dependencies" in "Order and Export". That had no effect on the problem.
Your suggestions are welcome.
FYI, my project has 3 main components. All 3 are contained in the same Eclipse project folder (see screen capture):
Application "App_A"
Library_L (included as Project Reference in "A") It's worth noting that Library_L executes perfectly when I run it as a non-library project.
Facebook SDK 3.0.2 (included as Project Reference in Library_L (see screen capture)
Project References are used to include a library project (e.g., the Facebook SDK).
The documentation -- and books by balding guys -- show you how to attach an Android library project to your app, and it has nothing to do with "Project References".
Similarly, the documentation for the Facebook SDK shows you how to attach their Android library project to your app (see Step 6). They follow the standard Android library project approach, and that too does not involve "Project References".
Now, it is conceivable that there's something about a newer Eclipse version (I'm running Indigo) that causes "Project References" to show Android library projects as checked -- it does not do so in my version.
Make sure that you have properly set up the Android library projects, and see if that helps with your issue.
Related
For the last 2 days I've been trying to simply get Google play game services Integrated into my game. I've followed the instructions here...
https://github.com/playgameservices/android-basic-samples/blob/master/README.md
...many many times. I have been trying to get it to build with Gradle but for now, I'll just focus on Eclipse building until that works. I've imported BaseGameUtils project into my workspace as an Android library project. My game android project has two Android library dependencies: google-play-services_lib and BaseGameUtils. Everything in Eclipse is showing without any errors. When I build and run on a real device, I see an error that says -
[2014-10-27 20:39:25 - BaseGameUtils] Could not find BaseGameUtils.apk!
I don't know why it's even looking for BaseGameUtils.apk since it should be an Android library. That said, I'm not sure how an Android library is really handled so maybe it should be a .apk. In any case, I couldn't find any information on this bug and the error message doesn't give me much to work with. I've tried adjusting things in the Build Path but no luck. I did have to remove some redundant dependencies in my Build Path earlier since I was getting some kind of duplicate DEX error but I'm not sure that's related in any way to this. I am desperate for help, anyone have any idea?
Can you try this? It has to do with conflicting methods of specifying that a project is a library.
I found the source of the problem!
It turns out that "with the new library feature, you don't specify the
Android projects you depend on in the Java Build Path section of the
Properties. You do it in the Android section of the Properties".
So all I had to do is go the Application Project's Properties, hit the
Projects tab, select my own library project and click the Remove
button. That's it. No more problem.
In Eclipse Java EE select the project Properties, then select Project
References, then check the FacebookSDK (see screen capture)
From: Android Eclipse - Could not find *.apk
If that doesn't help, you may want to double check that you selected "Is Library" in BaseGameUtils.
Also, when you hit "Run" in Eclipse, are you running your application and not BaseGameUtils?
Please would you check that BaseGameUtils has "is library" checked and that your application project DOES NOT have "is library" checked.
If this is correct, then please would you review the following in detail (especially as regards checking and unchecking "is library" ) :
Android Eclipse - Could not find *.apk
I presume that the DEX error related to two or more versions of the same lib. What is the specific GameHelper error ?
As a general point, I find it productive to get a sample project working first to ensure that I have got the environment working correctly before I start integrating game services into my own projects. If you have been changing the build path then it may be quicker to start from scratch and get a sample working. I have followed those instructions in the past and they are accurate.
I have a project target to API Level 10 and i want to implement the new ActionBar support library.
After follow all the instrutions in the Support Library Setup, when adding the library to my project I came across with dozens of error messages like this:
android-support-v7-appcompat\res\values-v14\styles_base.xml:24: error: Error retrieving parent for item: No resource found that matches the given name 'android:Widget.Holo.....
OK, i know that they are many answers to this question, but, after trying all the more obvious, i still could not solve the error.
I kept searching and found the cause, which is not so obvious, at least for newbies like me.
My intent is provide a full answer to help all those who are like me and do not master all the secrets of the Android development.
This is what you have to do for use the ActionBar support library correctly.
Follow the instructions in the Support Library Setup - Adding libraries with resources.
One thing that can bring some doubt is add the library to your aplicattion project:
(1) In the Project Explorer, right-click your project and select Properties.
(2) At the left pane select Android.
(3) At th bottom of the right pane click Add
(4) Select the library project android-support-v7-appcompat and click OK.
Click OK to close the properties window.
If you not get any of the errors I mentioned it´s all done.
However if you are like me, you dont´t followed the advice of Android team that suggests you always compile your source using the latest SDK, you get the error.
The error ocurrs because my Project Build Target was Android 2.3.3 and need to be at lest 3.0.
It was not immediately clear to me because of the fact that I'm specifically developing for Android 2.3.3 and I'm using support libraries.
OK, I hope this helps.
You should add that support library to your project. To add:
Right click on project, then go to :
properties > Java Build Path > Libraries
here Add External JARs...
add android-support-v7-appcompat.jar (path/to/sdk/extras\android\support\v7\appcompat\libs)
Additionally you also have to copy that jar to libs folder of your project, if it is not there automatically.
and you should use the #style/Theme.AppCompat theme for your application for support-v7 to be working
also keep one thing in mind you should change min sdk version to 11 if you want to support("android:windowActionBar")property in your project.
I'm new to Android development, so it's possible this is a simple question. Apologies if it is - I spent quite some time searching but couldn't find anything that worked.
I'm trying to use a GridLayout in my project, but ideally with the Android Support Library so I can target lower versions of the API. When I drag a GridLayout into the graphical layout designer, a message pops up asking explaining I need a compatibility library for API versions older than 14, and asks if I want to install this library. I hit "Install" and let Eclipse do its thing, but an error shows up in the Eclipse graphical layout designer:
The following classes could not be instantiated:
- android.support.v7.widget.GridLayout
See the Error Log ( Window > Show View) for more details. (Screenshot)
From the error log,
android.support.v7.widget.GridLayout failed to instantiate. Here's the stack trace
My search for this error turned up this SO thread, which seemed promising; I checked my Java, Eclipse and ADT versions but all seem to be reasonably up-to-date (Java 7 update 17, Eclipse Juno release, ADT 21.1). With the update checks out of the way, I looked at how that SO user had his project set up: a library project for the gridlayout, a project reference to this library in the main project, and the gridlayout jar copied into the main project's libs folder. Following the Eclipse "install compatibility library" message, a gridlayout library project had already been created for me, but the project reference had not been set up and the gridlayout jar hadn't been copied. I did both these things but still the GridLayout fails to instantiate.
I continued searching and found another SO thread. Despite that thread not using Eclipse, I attempted to translate the answer into the Eclipse equivalent, which was roughly the same as given by the thread above. (Copy the gridlayout jar to the project's libs folder, create a library project from gridlayout, and add a project reference to that library project from within the main project.) I also verified that the gridlayout jar is on the main project's build path. (Screenshot)
I also attempted to follow the instructions in the relevant Styling Android blogpost, but that's even worse: when I try to drag a GridLayout into my project, it throws two errors, a RelativeLayoutRule.onDropped() failed:
java.lang.NullPointerException with this stack trace and an Initializing project state with this stack trace. Based on the IOException mentioned in the "Initializing project state" stack trace, I speculated the problem might be my install location for the Android SDK: %APPDATA%\Local\Android. I finally tried uninstalling the SDK and reinstalling it to %PROGRAMFILES%\Android but without any luck.
I'm not really sure where to go from here. If anyone could give me a pointer in the right direction, I'd really appreciate it!
Try:
File->Import->Existing Android code into workspace
Specify android-sdk-[platform]/extras/android/support/v7/gridlayout
You need to import the GridLayout project as an Android library project for it to work.
i meant clear your build path...
Try this:
right click your project->properties->java build path->order and export where tick mark all option
Help needed!!!! Stuck for 2 weeks on this and help needed.
I've recently imported the facebook sdk for android and its projects into my workspace. It shows up errors and the problems:
Archive for required library: '/home/Documents/facebook-android-sdk-3.0.2.b/facebook/libs/._android-support-v4.jar' in project 'FacebookSDK' cannot be read or is not a valid ZIP file
And the samples get errors along the line of:
The container 'Android Dependencies' references non existing library '/home/Documents/facebook-android-sdk-3.0.2.b/facebook/bin/facebooksdk.jar'
The things I have done following the other discussions without any success are
cleaned project
set the Facebook SDK as library
looked at the build path section and added external jar consisting of facebook/libs
imported fb sdk like 20 times and into different folders.
made sure my java compiler was 1.6
HELP would be very greatly appreciated!!!!
Take the lastest version of android-support-v4.jar (in your sdk environement : sdk/extras/android/support/v4/android-support-v4.jar) and replace in your project and library project do not create conflict.
The steps to importing a library are:
Download the library
Place the library in the libs folder of the project.
Build the project
Do Not attempt to import the library using some import wizard.
I suspect either your download was corrupted, and you need to do it again, or you put the file into the wrong directly.
I think your problem is that the android.support.v4 versions are different, take the one from your project and replace the one in the Facebook sdk lib folder, it should dismiss the clash.
As per your question, I think you are not able to compile once you add the SDK to your project. Do you get an error saying unable to run as library?
If so that means you have included this as library and create your project as a library to be used further. It is a common mistake that I have seen many people do when they try to import a library to use and tick mark the checkbox is Library. This actually means you want this project to be treated as a library for future use. Just try to add the SDK and do not tick mark the checkbox and this project will run fine.
Many forums will just tell you to tick that checkbox and you will be stuck on this error for long time.
For any .jar file related issues you have to make the .jars files compatible as there hashing a problem and the two jars are not compatible with each other (a version issue).
I've created library project in IDEA with common helpers, which I use in my android applications.
Then I've created android application and included in it my library project like this tutorial said.
Everything seemed okay, code autocomplete worked fine, IDEA recognize that library and all classes and methods in it.
But then I compiled application and saw error "'org.my.helperlibrary' does not exist". However as I said IDEA acts like everything okay before making/launching project.
Here is similar question, but answer is trivial, of course my library has checked "Is Library Project" option but I still can not launch my application which use my library.
Updated:
I've just saw an error: "UNEXPECTED TOP-LEVEL EXCEPTION: java.lang.IllegalArgumentException: already added: Lorg/my/helperlibrary/Helper;" when I removed all usages of library in my android application. So it's just included in my app and not used.
It turned out that I should not add dependency manually in that window
I rather should add new module in my Project window at the left
Then I should choose iml file in the root folder of android library project I want to use
Then I pressed finish and from that point I had two modules in my project
After that when using classes I can press Alt+Enter on any class from SampleLibrary and tell IDEA to add module dependency
Then I could see that IDEA made all I need without me. I can now use SampleLibrary from SampleApplication!
Try to select library project, then click Build -> Compile <your library project name>.
Then back to you project which use this library and click Build -> Rebuild Project.
After that try to run project again.
Hope it helps.