问题描述
当我为参数添加@NotNull或@Nullable注释时,Android Studio自动帮助我添加/lib/annotations.jar并导入
import org.jetbrains.annotations.NotNull
import org.jetbrains.annotations.Nullable;
但是在此之后,项目将无法编译。如果我也删除注释,但保留导入语句,项目仍然不会编译。 但如果我删除了NotNull和Nullable的导入语句,那么项目会编译 !
错误:
Gradle:
FAILURE:构建失败,出现异常。
*出错:
任务执行失败':Bugtester:compileDebug'。
>编译失败;详细信息请参阅编译器错误输出。
*尝试:
使用--stacktrace选项运行以获取堆栈跟踪。使用--info或--debug选项运行以获取更多日志输出。
从cmd运行 gradlew compileDebug
提示:
:Bugtester:compileDebug失败
失败:生成失败,出现异常。
*出错:
任务执行失败':Bugtester:compileDebug'。
>找不到系统Java编译器。确保您已经安装了JDK(不仅仅是JRE),并且将您的JAVA_HOME系统变量配置为指向相应的目录。
*尝试:
使用--stacktrace选项运行以获取堆栈跟踪。使用--info或--debug选项运行以获取更多日志输出。
BUILD FAILED
所以我检查了我的环境变量,并将它们设置为:
JAVA_HOME = C:\程序文件(x86)\Java\jre7
JDK_HOME = C: \Program Files\Java\jdk1.7.0_21\
任何人都有这个想法? (我是java和android编程的新手)我猜,正确的方法是使用MavenCentral的原始JetBrains库在你的build.gradle依赖项(在这个例子中是最新版本)中的仓库:
intellij:注释:+ @ jar'...
}
When I add @NotNull or @Nullable annotations to a parameter Android Studio automatically helps me with adding /lib/annotations.jar and importing
import org.jetbrains.annotations.NotNull
import org.jetbrains.annotations.Nullable;
But after this, the project won't compile. If I also remove the annotations but keep the import statements the project still won't compile. But if I remove the import statements for NotNull and Nullable the project compiles fine!
Android Studio gives a generic error:
Gradle:
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':Bugtester:compileDebug'.
> Compilation failed; see the compiler error output for details.
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
Running gradlew compileDebug
from cmd gives a slight hint:
:Bugtester:compileDebug FAILED
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':Bugtester:compileDebug'.
> Cannot find System Java Compiler. Ensure that you have installed a JDK (not just a JRE) and configured your JAVA_HOME system variable to point to the according directory.
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
BUILD FAILED
So I checked my environment variables and they are set as:
JAVA_HOME=C:\Program Files (x86)\Java\jre7
JDK_HOME=C:\Program Files\Java\jdk1.7.0_21\
Anyone got any idea for this? (I'm new to both java and android programming)
I guess, the right way is using original JetBrains library from MavenCentral repository in your build.gradle dependencies (latest available version in this example):
dependencies {
compile 'com.intellij:annotations:+@jar'
...
}
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