好的，我知道这里有很多这样的主题，但我已经尝试过我能找到的所有东西，但仍然无法让它发挥作用。我已经使用我的项目大约6个月没有错误，我停了3个月并在新计算机上重新进入它，现在它在尝试导出已签名的APK时不断给我这个错误。我尝试过以下方法：
我变得非常沮丧和7500行代码，我不觉得刚刚重新开始。关于我接下来应该采取什么步骤的任何建议？
这是我收到的控制台错误：
[2014-11-08 17:48:57 - ZombieBird-android] Dx
trouble processing "java/io/BufferedInputStream.class":
Ill-advised or mistaken usage of a core class (java.* or javax.*)
when not building a core library.
This is often due to inadvertently including a core library file
in your application's project, when using an IDE (such as
Eclipse). If you are sure you're not intentionally defining a
core class, then this is the most likely explanation of what's
going on.
However, you might actually be trying to define a class in a core
namespace, the source of which you may have taken, for example,
from a non-Android virtual machine project. This will most
assuredly not work. At a minimum, it jeopardizes the
compatibility of your app with future versions of the platform.
It is also often of questionable legality.
If you really intend to build a core library -- which is only
appropriate as part of creating a full virtual machine
distribution, as opposed to compiling an application -- then use
the "--core-library" option to suppress this error message.
If you go ahead and use "--core-library" but are in fact
building an application, then be forewarned that your application
will still fail to build or run, at some point. Please be
prepared for angry customers who find, for example, that your
application ceases to function once they upgrade their operating
system. You will be to blame for this problem.
If you are legitimately using some code that happens to be in a
core package, then the easiest safe alternative you have is to
repackage that code. That is, move the classes in question into
your own package namespace. This means that they will never be in
conflict with core system classes. JarJar is a tool that may help
you in this endeavor. If you find that you cannot do this, then
that is an indication that the path you are on will ultimately
lead to pain, suffering, grief, and lamentation.
[2014-11-08 17:48:57 - ZombieBird-android] Dx 1 error; aborting
[2014-11-08 17:48:57 - ZombieBird-android] Conversion to Dalvik format failed with error 1