无法使用 sbt+sbt-android 插件构建 Android+Scala 项目

Question

我无法使用 sbt 和 sbt-android plugin 构建 Android + Scala（和 IntelliJ Idea 12）项目。我安装了所有需要的东西并将 ANDROID_SDK_HOME 添加到 .bashrc 和 /etc/profile 但是：

me123@ubuntu:~/Documents/android_projects/my-android-project$ echo $ANDROID_SDK_HOME
/home/me123/android-sdk-linux/sdk

me123@ubuntu:~/Documents/android_projects/my-android-project$ sudo echo $ANDROID_SDK_HOME
/home/me123/android-sdk-linux/sdk

me123@ubuntu:~/Documents/android_projects/my-android-project$ sbt
[info] Loading global plugins from /home/me123/.sbt/plugins
[info] Loading project definition from /home/me123/Documents/android_projects/my-android-project/project
[info] Compiling 3 Scala sources to /home/me123/Documents/android_projects/my-android-project/project/target/scala-2.9.2/sbt-0.12/classes...
[error] /home/me123/Documents/android_projects/my-android-project/project/target/scala-2.9.2/sbt-0.12/classes/AndroidEclipse$Transformer.class (Permission denied)
[error] one error found
[error] (compile:compile) Compilation failed
Project loading failed: (r)etry, (q)uit, (l)ast, or (i)gnore? q


me123@ubuntu:~/Documents/android_projects/my-android-project$ sudo sbt
[info] Loading project definition from /home/me123/Documents/android_projects/my-android-project/project
[info] Updating {file:/home/me123/Documents/android_projects/my-android-project/project/}default-6ff5da...
[info] Resolving org.scala-sbt#precompiled-2_10_0;0.12.2 ...
[info] Done updating.
[error] Android SDK not found. You might need to set ANDROID_SDK_HOME or ANDROID_SDK_ROOT or ANDROID_HOME
[error] Use 'last' for the full log.
Project loading failed: (r)etry, (q)uit, (l)ast, or (i)gnore? q

更新：

    > android:start-device
[info] Wrote /home/alex/Documents/android_projects/my-android-project/target/scala-2.10/src_managed/main/scala/my/android/project/TR.scala
[info] Compiling 2 Scala sources and 1 Java source to /home/alex/Documents/android_projects/my-android-project/target/scala-2.10/classes...
[warn] there were 4 feature warnings; re-run with -feature for details
[warn] one warning found
ProGuard, version 4.6
ProGuard is released under the GNU General Public License. You therefore
must ensure that programs that link to it (scala, ...)
carry the GNU General Public License as well. Alternatively, you can
apply for an exception with the author of ProGuard.
Reading program directory [/home/alex/Documents/android_projects/my-android-project/target/scala-2.10/classes]
[trace] Stack trace suppressed: run last main/android:proguard for the full output.
[error] (main/android:proguard) java.io.IOException: Can't read [/home/alex/Documents/android_projects/my-android-project/target/scala-2.10/classes] (Can't process class [my/android/project/R$id.class] (Unsupported version number [51.0] for class format))
[error] Total time: 14 s, completed May 30, 2013 3:49:46 PM

Answer 1

首先，执行sudo echo $ANDROID_HOME 将与echo $ANDROID_HOME 完全相同，因为该变量将被您的shell在执行命令之前替换。

那么，您很可能遇到了权限问题。尝试运行它以确保您拥有正确的：

$ chmod -Rv 700 /home/me123/Documents/android_projects/my-android-project/