我已经审阅了许多与此相关的问题，但似乎无法找到一个明确的解决方案。我试图使用emma为应用程序提供代码覆盖率，并将robotium用作测试单元。external dropbox.jar位于eclipse的构建路径中。
应用程序和测试用例在eclipse中成功运行，但是在运行脚本时，ant无法找到dropbox.jar依赖项。下面是我的脚本，后面是ant调用日志的一部分

# !/bin/bash

# Code Coverage Script:

# (android:command not found error)

export ANDROID_HOME=/Users/Deverick/android-skds
export JAVA_HOME=/System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home
export PATH=$ANDROID_HOME/platform-tools:$ANDROID_HOME/tools:/Users/Deverick/Documents/workspace/Diary-Test/libs/dropbox-android-sdk-1.6.1:$PATH

echo $PATH
cd ~/Documents/workspace/
cd Diary
ant clean
cd ..
cd Diary-Test
ant clean
cd ..
android  update project --path ./ --name Diary --target android-16 --subprojects
cd Diary-Test
android  update test-project --main ../Diary --path ./
ant emma debug install
ant emma debug install test

日志输出：

-code-gen:
[mergemanifest] Merging AndroidManifest files into one.
[mergemanifest] Manifest merger disabled. Using project manifest only.
     [echo] Handling aidl files...
     [aidl] No AIDL files to compile.
     [echo] ----------
     [echo] Handling RenderScript files...
     [echo] ----------
     [echo] Handling Resources...
     [aapt] Generating resource IDs...
     [echo] ----------
     [echo] Handling BuildConfig class...
[buildconfig] Generating BuildConfig class.

-pre-compile:

-compile:
    [javac] Compiling 4 source files to /Users/Deverick/Documents/workspace/Diary/bin/classes
    [javac] /Users/Deverick/Documents/workspace/Diary/src/jpf/android/diary/Diary.java:2: warning: unmappable character for encoding UTF-8
    [javac] //  Copyright ? 2012  Josep Portella Florit <hola@josep-portella.com>
    [javac]               ^
    [javac] /Users/Deverick/Documents/workspace/Diary/src/jpf/android/diary/Diary.java:39: package com.dropbox.client2 does not exist
    [javac] import com.dropbox.client2.DropboxAPI;
    [javac]                           ^
    [javac] /Users/Deverick/Documents/workspace/Diary/src/jpf/android/diary/Diary.java:40: package com.dropbox.client2.android does not exist
    [javac] import com.dropbox.client2.android.AndroidAuthSession;

我该如何将这个.jar路径添加到脚本中，以便将其视为一个依赖项？我见过一些关于$classpath的引用。大多数与此相关的问题都使用build.xml文件来添加依赖项，但是每次脚本都会清除build.xml。如有任何澄清，我们将不胜感激！