我正在尝试使用 ant 构建我的 android 项目（它在 eclipse 中运行良好）。我运行错误并显示以下构建失败行：
BUILD FAILED
.../android_sdks/tools/ant/build.xml:680: The following error occurred while executing this line:
.../android_sdks/tools/ant/build.xml:693: Compile failed; see the compiler error output for details.
上面的java编译有很多错误，都是找不到符号错误。这些符号大部分是添加到 R 文件中的变量。有些是项目内的类。
我使用以下方法设置构建环境：
android update project --path .
我的工具和 platform_tools 都是最新的，并且我在 android-7 上运行。我已经刷新了项目，对项目进行了清理，甚至重新启动了 Eclipse。
我对蚂蚁相当陌生，希望得到任何建议。
构建失败的输出（根据要求，我对格式问题表示歉意）：
MacBook-Pro：[公司]_Android$ ant clean debugBuildfile：[android_path]/build.xml
-check-env:
[checkenv] Android SDK Tools Revision 20
[checkenv] Installed at [path]/android_sdks
-setup:
[echo] Project Name: SplashActivity
[gettype] Project Type: Application
[echo] Switching between debug and non debug build: Deleting previous compilation output...
[delete] Deleting directory [android_path]/bin/classes
-pre-clean:
clean:
[delete] Deleting directory [android_path]/bin
[delete] Deleting directory [android_path]/gen
[getlibpath] Library dependencies:
[getlibpath] No Libraries
[subant] No sub-builds to iterate on
###removed some code#####
-build-setup:
[echo] Resolving Build Target for SplashActivity...
[gettarget] Project Target: Android 2.1
[gettarget] API level: 7
[echo] ----------
[echo] Creating output directories if needed...
[mkdir] Created dir: [android_path]/bin
[mkdir] Created dir: [android_path]/bin/res
[mkdir] Created dir: [android_path]/gen
[mkdir] Created dir: [android_path]/bin/classes
[echo] ----------
[echo] Resolving Dependencies for SplashActivity...
[dependency] Ordered libraries:
[dependency]
[dependency] ------------------
[dependency] API<=15: Adding annotations.jar to the classpath.
[echo] ----------
[echo] Building Libraries with 'debug'...
[subant] No sub-builds to iterate on
-pre-build:
-code-gen:
[mergemanifest] Merging AndroidManifest files into one.
[mergemanifest] Manifest merger disabled. Using project manifest only.
[echo] Handling aidl files...
[aidl] Found 1 AIDL files.
[aidl] Compiling 1 AIDL files.
[echo] ----------
[echo] Handling RenderScript files...
[renderscript] No RenderScript files to compile.
[echo] ----------
[echo] Handling Resources...
[aapt] Generating resource IDs...
[echo] ----------
[echo] Handling BuildConfig class...
[buildconfig] Generating BuildConfig class.
-pre-compile:
-compile:
[javac] Compiling 263 source files to [android_path]/bin/classes
[javac] [android_path]/src/com/[company]/firstbase/AbstractFirstBaseActivity.java:447: warning: unmappable character for encoding UTF-8
#####removed a lot of similar warnings######
[javac] [android_path]/src/com/[company]/firstbase/models/[company]Match.java:14: cannot find symbol
[javac] symbol : class MatchExpiryComparator
[javac] location: package com.[company].firstbase.util
[javac] import com.[company].firstbase.util.MatchExpiryComparator;
[javac] ^
[javac] [android_path]/src/com/[company]/firstbase/models/[company]Match.java:21: cannot find symbol
[javac] symbol : class MatchExpiryComparator
[javac] location: class com.[company].firstbase.models.[company]Match
[javac] public static MatchExpiryComparator EXPIRATION_SORT_COMPARATOR = new MatchExpiryComparator();
[javac] ^
[javac] [android_path]/src/com/[company]/firstbase/widget/[company]Widget.java:12: cannot find symbol
[javac] symbol : class DashboardActivity
[javac] location: package com.[company].firstbase
[javac] import com.[company].firstbase.DashboardActivity;
[javac] ^
[javac] [android_path]/src/com/[company]/firstbase/FirstBaseApplication.java:178: warning: non-varargs call of varargs method with inexact argument type for last parameter;
[javac] cast to java.lang.Object for a varargs call
[javac] cast to java.lang.Object[] for a non-varargs call and to suppress this warning
[javac] facebookData.put(key, Utils.stringJoin(",", entries));
[javac] ^
[javac] [android_path]/src/com/[company]/firstbase/misc/Panel.java:189: cannot find symbol
[javac] symbol : variable panelHandle
[javac] location: class com.[company].firstbase.R.id
[javac] mHandle = findViewById(R.id.panelHandle);
[javac] ^
[javac] [android_path]/src/com/[company]/firstbase/misc/Panel.java:193: cannot find symbol
[javac] symbol : variable panelContent
[javac] location: class com.[company].firstbase.R.id
[javac] mContent = findViewById(R.id.panelContent);
[javac] ^
[javac] [android_path]/src/com/[company]/firstbase/models/[company]Match.java:21: cannot find symbol
[javac] symbol : class MatchExpiryComparator
[javac] location: class com.[company].firstbase.models.[company]Match
[javac] public static MatchExpiryComparator EXPIRATION_SORT_COMPARATOR = new MatchExpiryComparator();
[javac] ^
[javac] [android_path]/src/com/[company]/firstbase/models/[company]Match.java:56: cannot find symbol
[javac] symbol : variable USERS_USERID
[javac] location: class com.[company].firstbase.db.DbHelper
[javac] this.userID = Utils.descryptForDB(c.getString(c.getColumnIndexOrThrow(DbHelper.USERS_USERID)));
[javac] ^
[javac] [android_path]/src/com/[company]/firstbase/models/[company]Match.java:57: cannot find symbol
[javac] symbol : variable USERS_USERNAME
[javac] location: class com.[company].firstbase.db.DbHelper
[javac] this.username = c.getString(c.getColumnIndexOrThrow(DbHelper.USERS_USERNAME));
[javac] ^
[javac] [android_path]/src/com/[company]/firstbase/models/[company]Match.java:58: cannot find symbol
[javac] symbol : variable USERS_PHOTO
[javac] location: class com.[company].firstbase.db.DbHelper
[javac] this.photoURI = c.getString(c.getColumnIndexOrThrow(DbHelper.USERS_PHOTO));
[javac] ^
#######Removed a lot of similar errors ##########
[javac] ^
[javac] [android_path]/src/com/[company]/firstbase/widget/[company]Widget.java:21: cannot find symbol
[javac] symbol : variable widget_layout
[javac] location: class com.[company].firstbase.R.layout
[javac] RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.widget_layout);
[javac] ^
[javac] [android_path]/src/com/[company]/firstbase/widget/[company]Widget.java:23: cannot find symbol
[javac] symbol : variable DashboardActivity
[javac] location: class com.[company].firstbase.widget.[company]Widget
[javac] int count = DashboardActivity.mMatchesCalloutCount+DashboardActivity.mConnectionsCalloutCount;
[javac] ^
[javac] [android_path]/src/com/[company]/firstbase/widget/[company]Widget.java:23: cannot find symbol
[javac] symbol : variable DashboardActivity
[javac] location: class com.[company].firstbase.widget.[company]Widget
[javac] int count = DashboardActivity.mMatchesCalloutCount+DashboardActivity.mConnectionsCalloutCount;
[javac] ^
[javac] [android_path]/src/com/[company]/firstbase/widget/[company]Widget.java:23: incompatible types
[javac] found : java.lang.String
[javac] required: int
[javac] int count = DashboardActivity.mMatchesCalloutCount+DashboardActivity.mConnectionsCalloutCount;
[javac] ^
[javac] [android_path]/src/com/[company]/firstbase/widget/[company]Widget.java:27: cannot find symbol
[javac] symbol : variable callout
[javac] location: class com.[company].firstbase.R.id
[javac] views.setTextViewText(R.id.callout, count+"");
[javac] ^
[javac] [android_path]/src/com/[company]/firstbase/widget/[company]Widget.java:28: cannot find symbol
[javac] symbol : variable callout
[javac] location: class com.[company].firstbase.R.id
[javac] views.setViewVisibility(R.id.callout, View.VISIBLE);
[javac] ^
[javac] [android_path]/src/com/[company]/firstbase/widget/[company]Widget.java:31: cannot find symbol
[javac] symbol : variable callout
[javac] location: class com.[company].firstbase.R.id
[javac] views.setViewVisibility(R.id.callout, View.GONE);
[javac] ^
[javac] [android_path]/src/com/[company]/firstbase/widget/[company]Widget.java:34: cannot find symbol
[javac] symbol : class DashboardActivity
[javac] location: class com.[company].firstbase.widget.[company]Widget
[javac] Intent intent = new Intent(context, DashboardActivity.class);
[javac] ^
[javac] [android_path]/src/com/[company]/firstbase/widget/[company]Widget.java:37: cannot find symbol
[javac] symbol : variable widget_heart
[javac] location: class com.[company].firstbase.R.id
[javac] views.setOnClickPendingIntent(R.id.widget_heart, pendingIntent);
[javac] ^
[javac] Note: Some input files use or override a deprecated API.
[javac] Note: Recompile with -Xlint:deprecation for details.
[javac] Note: Some input files use unchecked or unsafe operations.
[javac] Note: Recompile with -Xlint:unchecked for details.
[javac] 40 errors
[javac] 21 warnings
构建失败
[path]/android_sdks/tools/ant/build.xml:680：执行此行时发生以下错误：
[路径]/android_sdks/tools/ant/build.xml:693: 编译失败；有关详细信息，请参阅编译器错误输出。
总时间：6秒
