Why does the app signature change in Android after a classpath change?

Posted by espinchi on Stack Overflow See other posts from Stack Overflow or by espinchi
Published on 2010-03-16T23:29:40Z Indexed on 2010/03/16 23:31 UTC
Read the original article Hit count: 150

Filed under:

android

|

classpath

|

reinstall

I have an Android project that branched into three different applications, app-1, app-2 and app-3, that apply some customizations. Currently there is a lot of code duplication, making maintenance a nightmare: do the changes in one of the branches, and then merge the other two.

So we create a library project, named app-core, that factors out most of the duplicated code. So far so good.

When I launch this into an emulator where the application was already loaded (before the refactoring), I get this exception:

Re-installation failed due to different application signatures

A different signature? But I just added a line in the .classpath to link to the app-core Java project!

The main question is: are the existing users going to be bothered by this too?

And the side question: Why is it a different signature?

© Stack Overflow or respective owner

Related posts about android

Please verify my layout: bottom button keeps coming up over keyboard

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi everyone, I have a layout which does almost what I want. There's just one bug regarding the button at the bottom. I should stay at the bottom at all times. But whenever I bring up the soft-keyboard the button will be displayed above the keyboard. This is not what I want but it should become covered… >>> More
Android programming. Application stopped unexpectedly.

as seen on Stack Overflow - Search for 'Stack Overflow'
I've just created a prototype of interface for my android app and tried to run it. Unfortunately I get an error that my app has stopped unexpectedly (my reputation doesn't allow me to post images so follow my links): screenshot of error message This is layout mode of editing. Everything looks as… >>> More
Listview Row Overlap Problem

as seen on Stack Overflow - Search for 'Stack Overflow'
I just updated my app and I am getting some odd complaints from people who update it. I am only getting complaints from people with non-stock android phones (phones that manufacturers have modified...HTC phones, cliq, pulse, etc), other phones like the Droid, Nexus work fine. My app (Photo Frame Deluxe)… >>> More
Why are some of my view not aligned correctly at the bottom of my relative layout?

as seen on Stack Overflow - Search for 'Stack Overflow'
I have problems getting some of my views aligned in a relative layout that I use inside a row of my listview. Here is a screenshot from the layout builder in Eclipse, this is what I think it should look like: The next image is from the emulator. Now the TestTestTest View is at the top and covers… >>> More
Android RatingBar weirdness: Whenever I add a RatingBar to my layout, a bunch of the generated tags,

as seen on Stack Overflow - Search for 'Stack Overflow'
Whenever I use a RatingBar view in my layout, I suddenly get all kinds of compile errors. I'm using Android 2.0, but I've also tried 2.0.1, and 2.1, without joy. I also get a message: Shader 'android.graphics.BitmapShader' is not supported in Layout Editor, and an odd warning which may or maynot be… >>> More

Related posts about classpath

create manifest without classpath entries in ejb-client jar, but have classpath entries in main ejb

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I am using maven-ejb-plugin to generate the ejb jar and the client jar. Also I am using archive to generate the manifest file. But the problem is I need the classpath entries in the ejb jar but not in the client jar. Is there any configuration available to addClasspath only in the main jar and… >>> More
package is not found, even though it's in both build classpath and runtime classpath

as seen on Stack Overflow - Search for 'Stack Overflow'
I am unable to compile a Java program because the compiler cannot find some of the packages needed even though they are in both the build classpath and runtime classpath. Other packages it can find just fine. The image below shows the problem. I have highlighted the gdata-media package in eclipse… >>> More
Add maven-build-classpath to plugin execution classpath

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi All I am writing some coge-gen maven-plugin. I need my project classpath be injected in to my plugin execution classpath. I found this article. The solution there works but is quite long. Maybe someone of you know an out of the box solution. >>> More
classpath and class loading on weblogic

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello, I am trying to create and load dynamically classes in weblogic (10.3.2.0). It is ADF application which I deploy to the weblogic server. When I print ((GenericClassLoader)this.getClass().getClassLoader()).getFinderClassPath() I see the path to my directory (of course not just this path) C:\… >>> More
Eclipse buildtime and runtime classpaths for easy execution of junit test cases

as seen on Stack Overflow - Search for 'Stack Overflow'
Hey, I've a large eclipse project with multiple junit classes. I'm trying to strike a balance between adding runtime resources to the eclipse project classpath, and the need to configure mutliple junit launch configurations. I realise the default eclipse build classpath is inherited by all unit… >>> More