java - 使用ant发布android包时编译错误

Question

我的Android项目有两个外部库:A和B。使用Ant命令行编译Android项目时，遇到以下错误。库 A 的路径为 D:\Workspace\library。

我在project.properties文件中将Project A标记为库，这是来自the post的指令。然而，它仍然没有成功。显然，编译时并没有把Project A当作一个库，而是需要classes.dex文件。

还有什么建议吗？

错误:

[dex] Converting compiled files and external libraries into d:\apk\compile\classes.dex...
       [dx] 
       [dx] UNEXPECTED TOP-LEVEL EXCEPTION:
       [dx] java.io.FileNotFoundException: D:\Workspace\library\bin\classes.jar (系统找不到指定的文件。)
       [dx]     at java.util.zip.ZipFile.open(Native Method)
       [dx]     at java.util.zip.ZipFile.<init>(Unknown Source)
       [dx]     at java.util.zip.ZipFile.<init>(Unknown Source)
       [dx]     at java.util.zip.ZipFile.<init>(Unknown Source)
       [dx]     at com.android.dx.cf.direct.ClassPathOpener.processArchive(ClassPathOpener.java:244)
       [dx]     at com.android.dx.cf.direct.ClassPathOpener.processOne(ClassPathOpener.java:166)
       [dx]     at com.android.dx.cf.direct.ClassPathOpener.process(ClassPathOpener.java:144)
       [dx]     at com.android.dx.command.dexer.Main.processOne(Main.java:596)
       [dx]     at com.android.dx.command.dexer.Main.processAllFiles(Main.java:498)
       [dx]     at com.android.dx.command.dexer.Main.runMonoDex(Main.java:264)
       [dx]     at com.android.dx.command.dexer.Main.run(Main.java:230)
       [dx]     at com.android.dx.command.dexer.Main.main(Main.java:199)
       [dx]     at com.android.dx.command.Main.main(Main.java:103)
       [dx] 
       [dx] UNEXPECTED TOP-LEVEL EXCEPTION:
       [dx] java.io.FileNotFoundException: D:\Workspace\YimianBaseLib\bin\classes.jar (系统找不到指定的文件。)
       [dx]     at java.util.zip.ZipFile.open(Native Method)
       [dx]     at java.util.zip.ZipFile.<init>(Unknown Source)
       [dx]     at java.util.zip.ZipFile.<init>(Unknown Source)
       [dx]     at java.util.zip.ZipFile.<init>(Unknown Source)
       [dx]     at com.android.dx.cf.direct.ClassPathOpener.processArchive(ClassPathOpener.java:244)
       [dx]     at com.android.dx.cf.direct.ClassPathOpener.processOne(ClassPathOpener.java:166)
       [dx]     at com.android.dx.cf.direct.ClassPathOpener.process(ClassPathOpener.java:144)
       [dx]     at com.android.dx.command.dexer.Main.processOne(Main.java:596)
       [dx]     at com.android.dx.command.dexer.Main.processAllFiles(Main.java:498)
       [dx]     at com.android.dx.command.dexer.Main.runMonoDex(Main.java:264)
       [dx]     at com.android.dx.command.dexer.Main.run(Main.java:230)
       [dx]     at com.android.dx.command.dexer.Main.main(Main.java:199)
       [dx]     at com.android.dx.command.Main.main(Main.java:103)
       [dx] 2 errors; aborting

Answer 1

这个错误的根本原因是这两个lib项目没有被视为一个库，尽管它们两个在project.properties中被明确标注为“android.library=true”(我在这里很困惑，但很确定我尽一切努力将其标记为lib。)对于Ant的编译机制，它会根据是否是lib生成具有不同名称但内容相同的jar文件

1. 对于非库项目，它将是 ${project_name}.jar
2. 对于库项目，它将是classes.jar

编译主项目时，Ant 需要classes.jar 作为其依赖项的输入来制作最终的包。所以这个过程到这里就停止了。我必须使用一个愚蠢的解决方案来修复它:在 lib 项目发布后，我将 ${project_name}.jar 重命名为classes.jar 并解决了这个问题。