I am trying to complete this tutorial, and have currently completed all the steps in lesson 1. I have also read the readme file about the mixed-case file correction, and have changed my code accordingly. However, when the project attempts to build, I recieve the following error:

[2011-09-29 15:03:24 - CustDB] Dx trouble processing: [2011-09-29 15:03:24 - CustDB] Dx class name (com/sybase/custdb/AndroidCustDB) does not match path (bin/com/sybase/custdb/AndroidCustDB.class) ...while parsing bin/com/sybase/custdb/AndroidCustDB.class ...while processing bin/com/sybase/custdb/AndroidCustDB.class [2011-09-29 15:03:24 - CustDB] Dx trouble processing: [2011-09-29 15:03:24 - CustDB] Dx class name (com/sybase/custdb/CustDB$Synchronizer) does not match path (bin/com/sybase/custdb/CustDB$Synchronizer.class) ...while parsing bin/com/sybase/custdb/CustDB$Synchronizer.class ...while processing bin/com/sybase/custdb/CustDB$Synchronizer.class [2011-09-29 15:03:24 - CustDB] Dx trouble processing: [2011-09-29 15:03:24 - CustDB] Dx class name (com/sybase/custdb/CustDB) does not match path (bin/com/sybase/custdb/CustDB.class) ...while parsing bin/com/sybase/custdb/CustDB.class ...while processing bin/com/sybase/custdb/CustDB.class [2011-09-29 15:03:24 - CustDB] Dx trouble processing: [2011-09-29 15:03:24 - CustDB] Dx class name (com/sybase/custdb/CustDBException) does not match path (bin/com/sybase/custdb/CustDBException.class) ...while parsing bin/com/sybase/custdb/CustDBException.class ...while processing bin/com/sybase/custdb/CustDBException.class [2011-09-29 15:03:24 - CustDB] Dx trouble processing: [2011-09-29 15:03:24 - CustDB] Dx class name (com/sybase/custdb/CustDBMain$1) does not match path (bin/com/sybase/custdb/CustDBMain$1.class) ...while parsing bin/com/sybase/custdb/CustDBMain$1.class ...while processing bin/com/sybase/custdb/CustDBMain$1.class [2011-09-29 15:03:24 - CustDB] Dx trouble processing: [2011-09-29 15:03:24 - CustDB] Dx class name (com/sybase/custdb/CustDBMain$2) does not match path (bin/com/sybase/custdb/CustDBMain$2.class) ...while parsing bin/com/sybase/custdb/CustDBMain$2.class ...while processing bin/com/sybase/custdb/CustDBMain$2.class [2011-09-29 15:03:24 - CustDB] Dx trouble processing: [2011-09-29 15:03:24 - CustDB] Dx class name (com/sybase/custdb/CustDBMain$3) does not match path (bin/com/sybase/custdb/CustDBMain$3.class) ...while parsing bin/com/sybase/custdb/CustDBMain$3.class ...while processing bin/com/sybase/custdb/CustDBMain$3.class [2011-09-29 15:03:24 - CustDB] Dx trouble processing: [2011-09-29 15:03:24 - CustDB] Dx class name (com/sybase/custdb/CustDBMain$4) does not match path (bin/com/sybase/custdb/CustDBMain$4.class) ...while parsing bin/com/sybase/custdb/CustDBMain$4.class ...while processing bin/com/sybase/custdb/CustDBMain$4.class [2011-09-29 15:03:24 - CustDB] Dx trouble processing: [2011-09-29 15:03:24 - CustDB] Dx class name (com/sybase/custdb/CustDBMain$5) does not match path (bin/com/sybase/custdb/CustDBMain$5.class) ...while parsing bin/com/sybase/custdb/CustDBMain$5.class ...while processing bin/com/sybase/custdb/CustDBMain$5.class [2011-09-29 15:03:24 - CustDB] Dx trouble processing: [2011-09-29 15:03:24 - CustDB] Dx class name (com/sybase/custdb/CustDBMain$6) does not match path (bin/com/sybase/custdb/CustDBMain$6.class) ...while parsing bin/com/sybase/custdb/CustDBMain$6.class ...while processing bin/com/sybase/custdb/CustDBMain$6.class [2011-09-29 15:03:24 - CustDB] Dx trouble processing: [2011-09-29 15:03:24 - CustDB] Dx class name (com/sybase/custdb/CustDBMain$7) does not match path (bin/com/sybase/custdb/CustDBMain$7.class) ...while parsing bin/com/sybase/custdb/CustDBMain$7.class ...while processing bin/com/sybase/custdb/CustDBMain$7.class [2011-09-29 15:03:24 - CustDB] Dx trouble processing: [2011-09-29 15:03:24 - CustDB] Dx class name (com/sybase/custdb/CustDBMain$StatusOnItemSelectedListener) does not match path (bin/com/sybase/custdb/CustDBMain$StatusOnItemSelectedListener.class) ...while parsing bin/com/sybase/custdb/CustDBMain$StatusOnItemSelectedListener.class ...while processing bin/com/sybase/custdb/CustDBMain$StatusOnItemSelectedListener.class [2011-09-29 15:03:24 - CustDB] Dx trouble processing: [2011-09-29 15:03:24 - CustDB] Dx class name (com/sybase/custdb/CustDBMain) does not match path (bin/com/sybase/custdb/CustDBMain.class) ...while parsing bin/com/sybase/custdb/CustDBMain.class ...while processing bin/com/sybase/custdb/CustDBMain.class [2011-09-29 15:03:24 - CustDB] Dx trouble processing: [2011-09-29 15:03:24 - CustDB] Dx class name (com/sybase/custdb/IOrderDisplay) does not match path (bin/com/sybase/custdb/IOrderDisplay.class) ...while parsing bin/com/sybase/custdb/IOrderDisplay.class ...while processing bin/com/sybase/custdb/IOrderDisplay.class [2011-09-29 15:03:24 - CustDB] Dx trouble processing: [2011-09-29 15:03:24 - CustDB] Dx class name (com/sybase/custdb/R$array) does not match path (bin/com/sybase/custdb/R$array.class) ...while parsing bin/com/sybase/custdb/R$array.class ...while processing bin/com/sybase/custdb/R$array.class [2011-09-29 15:03:24 - CustDB] Dx trouble processing: [2011-09-29 15:03:24 - CustDB] Dx class name (com/sybase/custdb/R$attr) does not match path (bin/com/sybase/custdb/R$attr.class) ...while parsing bin/com/sybase/custdb/R$attr.class ...while processing bin/com/sybase/custdb/R$attr.class [2011-09-29 15:03:24 - CustDB] Dx trouble processing: [2011-09-29 15:03:24 - CustDB] Dx class name (com/sybase/custdb/R$drawable) does not match path (bin/com/sybase/custdb/R$drawable.class) ...while parsing bin/com/sybase/custdb/R$drawable.class ...while processing bin/com/sybase/custdb/R$drawable.class [2011-09-29 15:03:24 - CustDB] Dx trouble processing: [2011-09-29 15:03:24 - CustDB] Dx class name (com/sybase/custdb/R$id) does not match path (bin/com/sybase/custdb/R$id.class) ...while parsing bin/com/sybase/custdb/R$id.class ...while processing bin/com/sybase/custdb/R$id.class [2011-09-29 15:03:24 - CustDB] Dx trouble processing: [2011-09-29 15:03:24 - CustDB] Dx class name (com/sybase/custdb/R$layout) does not match path (bin/com/sybase/custdb/R$layout.class) ...while parsing bin/com/sybase/custdb/R$layout.class ...while processing bin/com/sybase/custdb/R$layout.class [2011-09-29 15:03:24 - CustDB] Dx trouble processing: [2011-09-29 15:03:24 - CustDB] Dx class name (com/sybase/custdb/R$menu) does not match path (bin/com/sybase/custdb/R$menu.class) ...while parsing bin/com/sybase/custdb/R$menu.class ...while processing bin/com/sybase/custdb/R$menu.class [2011-09-29 15:03:24 - CustDB] Dx trouble processing: [2011-09-29 15:03:24 - CustDB] Dx class name (com/sybase/custdb/R$string) does not match path (bin/com/sybase/custdb/R$string.class) ...while parsing bin/com/sybase/custdb/R$string.class ...while processing bin/com/sybase/custdb/R$string.class [2011-09-29 15:03:24 - CustDB] Dx trouble processing: [2011-09-29 15:03:24 - CustDB] Dx class name (com/sybase/custdb/R) does not match path (bin/com/sybase/custdb/R.class) ...while parsing bin/com/sybase/custdb/R.class ...while processing bin/com/sybase/custdb/R.class [2011-09-29 15:03:24 - CustDB] Dx trouble processing: [2011-09-29 15:03:24 - CustDB] Dx class name (com/sybase/custdb/SchemaCreator) does not match path (bin/com/sybase/custdb/SchemaCreator.class) ...while parsing bin/com/sybase/custdb/SchemaCreator.class ...while processing bin/com/sybase/custdb/SchemaCreator.class [2011-09-29 15:03:24 - CustDB] Dx

UNEXPECTED TOP-LEVEL EXCEPTION: java.lang.IllegalArgumentException: already added: Lcom/ianywhere/ultralitejni12/ColumnSchema; [2011-09-29 15:03:24 - CustDB] Dx at com.android.dx.dex.file.ClassDefsSection.add(ClassDefsSection.java:123) [2011-09-29 15:03:24 - CustDB] Dx at com.android.dx.dex.file.DexFile.add(DexFile.java:143) [2011-09-29 15:03:24 - CustDB] Dx at com.android.dx.command.dexer.Main.processClass(Main.java:372) [2011-09-29 15:03:24 - CustDB] Dx at com.android.dx.command.dexer.Main.processFileBytes(Main.java:346) [2011-09-29 15:03:24 - CustDB] Dx at com.android.dx.command.dexer.Main.access$400(Main.java:59) [2011-09-29 15:03:24 - CustDB] Dx at com.android.dx.command.dexer.Main$1.processFileBytes(Main.java:294) [2011-09-29 15:03:24 - CustDB] Dx at com.android.dx.cf.direct.ClassPathOpener.processArchive(ClassPathOpener.java:244) [2011-09-29 15:03:24 - CustDB] Dx at com.android.dx.cf.direct.ClassPathOpener.processOne(ClassPathOpener.java:130) [2011-09-29 15:03:24 - CustDB] Dx at com.android.dx.cf.direct.ClassPathOpener.process(ClassPathOpener.java:108) [2011-09-29 15:03:24 - CustDB] Dx at com.android.dx.command.dexer.Main.processOne(Main.java:313) [2011-09-29 15:03:24 - CustDB] Dx at com.android.dx.command.dexer.Main.processAllFiles(Main.java:233) [2011-09-29 15:03:24 - CustDB] Dx at com.android.dx.command.dexer.Main.run(Main.java:185) [2011-09-29 15:03:24 - CustDB] Dx at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [2011-09-29 15:03:24 - CustDB] Dx at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) [2011-09-29 15:03:24 - CustDB] Dx at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) [2011-09-29 15:03:24 - CustDB] Dx at java.lang.reflect.Method.invoke(Unknown Source) [2011-09-29 15:03:24 - CustDB] Dx at com.android.ide.eclipse.adt.internal.build.DexWrapper.run(DexWrapper.java:179) [2011-09-29 15:03:24 - CustDB] Dx at com.android.ide.eclipse.adt.internal.build.BuildHelper.executeDx(BuildHelper.java:652) [2011-09-29 15:03:24 - CustDB] Dx at com.android.ide.eclipse.adt.internal.build.builders.PostCompilerBuilder.build(PostCompilerBuilder.java:510) [2011-09-29 15:03:24 - CustDB] Dx at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:728) [2011-09-29 15:03:24 - CustDB] Dx at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) [2011-09-29 15:03:24 - CustDB] Dx at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:199) [2011-09-29 15:03:24 - CustDB] Dx at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:239) [2011-09-29 15:03:24 - CustDB] Dx at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:292) [2011-09-29 15:03:24 - CustDB] Dx at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) [2011-09-29 15:03:24 - CustDB] Dx at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:295) [2011-09-29 15:03:24 - CustDB] Dx at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:351) [2011-09-29 15:03:24 - CustDB] Dx at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:374) [2011-09-29 15:03:24 - CustDB] Dx at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:143) [2011-09-29 15:03:24 - CustDB] Dx at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:241) [2011-09-29 15:03:24 - CustDB] Dx at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54) [2011-09-29 15:03:24 - CustDB] Dx 23 warnings [2011-09-29 15:03:24 - CustDB] Dx 1 error; aborting [2011-09-29 15:03:24 - CustDB] Conversion to Dalvik format failed with error 1

I have done research on this error, and all I've seen as a solution is to Clean the project (I have repeatedly, to no avail.) I am currently running the application in Eclipse Indigo, though I have also attemped to do the tutorial in MyEclipse 8, and run into the same problem. Does anyone know what the underlying cause of this error is, and how I can fix it? Thanks in advance.