Tại sao xây dựng thất bại với bản phát hành Gradle mới (2.3)?

Question

Chúng tôi có tập lệnh Gradle để xây dựng nhiều dự án. Nó hoạt động tốt với phiên bản 2.2.1 gradle nhưng với bản phát hành Gradle mới 2.3 dự án không được xây dựng. Nó cung cấp cho các lỗi sau.

org.gradle.api.tasks.TaskValidationException: A problem was found with the configuration of task ':TESTGradle:startScripts'. 
     at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:55) 
     at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:42) 
     at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:52) 
     at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:53) 
     at org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter.execute(ExecuteAtMostOnceTaskExecuter.java:43) 
     at org.gradle.api.internal.AbstractTask.executeWithoutThrowingTaskFailure(AbstractTask.java:306) 
     at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.executeTask(AbstractTaskPlanExecutor.java:79) 
     at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.processTask(AbstractTaskPlanExecutor.java:63) 
     at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.run(AbstractTaskPlanExecutor.java:51) 
     at org.gradle.execution.taskgraph.ParallelTaskPlanExecutor.process(ParallelTaskPlanExecutor.java:45) 
     at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter.execute(DefaultTaskGraphExecuter.java:88) 
     at org.gradle.execution.SelectedTaskExecutionAction.execute(SelectedTaskExecutionAction.java:29) 
     at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:62) 
     at org.gradle.execution.DefaultBuildExecuter.access$200(DefaultBuildExecuter.java:23) 
     at org.gradle.execution.DefaultBuildExecuter$2.proceed(DefaultBuildExecuter.java:68) 
     at org.gradle.execution.DryRunBuildExecutionAction.execute(DryRunBuildExecutionAction.java:32) 
     at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:62) 
     at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:55) 
     at org.gradle.initialization.DefaultGradleLauncher.doBuildStages(DefaultGradleLauncher.java:149) 
     at org.gradle.initialization.DefaultGradleLauncher.doBuild(DefaultGradleLauncher.java:106) 
     at org.gradle.initialization.DefaultGradleLauncher.run(DefaultGradleLauncher.java:86) 
     at org.gradle.launcher.exec.InProcessBuildActionExecuter$DefaultBuildController.run(InProcessBuildActionExecuter.java:80) 
     at org.gradle.launcher.cli.ExecuteBuildAction.run(ExecuteBuildAction.java:33) 
     at org.gradle.launcher.cli.ExecuteBuildAction.run(ExecuteBuildAction.java:24) 
     at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:36) 
     at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:26) 
     at org.gradle.launcher.cli.RunBuildAction.run(RunBuildAction.java:51) 
     at org.gradle.internal.Actions$RunnableActionAdapter.execute(Actions.java:169) 
     at org.gradle.launcher.cli.CommandLineActionFactory$ParseAndBuildAction.execute(CommandLineActionFactory.java:237) 
     at org.gradle.launcher.cli.CommandLineActionFactory$ParseAndBuildAction.execute(CommandLineActionFactory.java:210) 
     at org.gradle.launcher.cli.JavaRuntimeValidationAction.execute(JavaRuntimeValidationAction.java:35) 
     at org.gradle.launcher.cli.JavaRuntimeValidationAction.execute(JavaRuntimeValidationAction.java:24) 
     at org.gradle.launcher.cli.CommandLineActionFactory$WithLogging.execute(CommandLineActionFactory.java:206) 
     at org.gradle.launcher.cli.CommandLineActionFactory$WithLogging.execute(CommandLineActionFactory.java:169) 
     at org.gradle.launcher.cli.ExceptionReportingAction.execute(ExceptionReportingAction.java:33) 
     at org.gradle.launcher.cli.ExceptionReportingAction.execute(ExceptionReportingAction.java:22) 
     at org.gradle.launcher.Main.doAction(Main.java:33) 
     at org.gradle.launcher.bootstrap.EntryPoint.run(EntryPoint.java:45) 
     at org.gradle.launcher.bootstrap.ProcessBootstrap.runNoExit(ProcessBootstrap.java:54) 
     at org.gradle.launcher.bootstrap.ProcessBootstrap.run(ProcessBootstrap.java:35) 
     at org.gradle.launcher.GradleMain.main(GradleMain.java:23) 
Caused by: org.gradle.api.InvalidUserDataException: No value has been specified for property 'mainClassName'. 
     at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:47) 
     ... 40 more 

Bạn có thể đưa ra một số lời khuyên để khắc phục sự cố này không?

Answer 1

Nó cũng không hoạt động với phiên bản 2.2.1 phiên bản gradle. Xem kết quả bên dưới:

[opal@opal-mac-2]/tmp % cat build.gradle 
apply plugin: 'application' 
[opal@opal-mac-2]/tmp % gradle -v 

------------------------------------------------------------ 
Gradle 2.2.1 
------------------------------------------------------------ 

Build time: 2014-11-24 09:45:35 UTC 
Build number: none 
Revision:  6fcb59c06f43a4e6b1bcb401f7686a8601a1fb4a 

Groovy:  2.3.6 
Ant:   Apache Ant(TM) version 1.9.3 compiled on December 23 2013 
JVM:   1.8.0_05 (Oracle Corporation 25.5-b02) 
OS:   Mac OS X 10.10.1 x86_64 

[opal@opal-mac-2]/tmp % gradle startScripts 
:compileJava UP-TO-DATE 
:processResources UP-TO-DATE 
:classes UP-TO-DATE 
:jar UP-TO-DATE 
:startScripts FAILED 

FAILURE: Build failed with an exception. 

* What went wrong: 
A problem was found with the configuration of task ':startScripts'. 
> No value has been specified for property 'mainClassName'. 

* Try: 
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. 

BUILD FAILED 

Total time: 2.909 secs 
[opal@opal-mac-2]/tmp % gvm use gradle 2.3 

Using gradle version 2.3 in this shell. 
[opal@opal-mac-2]/tmp % gradle -v 

------------------------------------------------------------ 
Gradle 2.3 
------------------------------------------------------------ 

Build time: 2015-02-16 05:09:33 UTC 
Build number: none 
Revision:  586be72bf6e3df1ee7676d1f2a3afd9157341274 

Groovy:  2.3.9 
Ant:   Apache Ant(TM) version 1.9.3 compiled on December 23 2013 
JVM:   1.8.0_05 (Oracle Corporation 25.5-b02) 
OS:   Mac OS X 10.10.1 x86_64 

[opal@opal-mac-2]/tmp % gradle startScripts 
:compileJava UP-TO-DATE 
:processResources UP-TO-DATE 
:classes UP-TO-DATE 
:jar 
:startScripts FAILED 

FAILURE: Build failed with an exception. 

* What went wrong: 
A problem was found with the configuration of task ':startScripts'. 
> No value has been specified for property 'mainClassName'. 

* Try: 
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. 

BUILD FAILED 

Total time: 3.168 secs 

Bạn không có mainClassName được chỉ định trong tập lệnh xây dựng của mình.