无法运行Ballerina Integrator教程给出的示例

Question

我是Ballerina和Ballerina Integrator的新手，在运行Ballerina Integrator教程提供的示例时遇到了错误。请帮助我解决问题。

供参考，我共享了屏幕截图和日志文件。

java.lang.NoSuchMethodError: org.ballerinalang.jvm.types.BRecordType.<init>(Ljava/lang/String;Lorg/ballerinalang/jvm/types/BPackage;IZI)V
    at ballerina.lang_annotations.___init.$createTypeInstances(lang.annotations)
    at ballerina.lang_annotations.___init.$createTypes(lang.annotations)
    at ballerina.lang_annotations.___init.$currentModuleInit(lang.annotations)
    at ballerina.lang_annotations.___init.ballerina_lang_annotations__init_(lang.annotations:65535)
    at 13473.upload_to_ftp.___init.$moduleInit(upload_to_ftp:65535)
    at 13473.upload_to_ftp.___init.$lambda$$moduleInit$(upload_to_ftp)
    at org.ballerinalang.jvm.scheduling.SchedulerItem.execute(Scheduler.java:486)
    at org.ballerinalang.jvm.scheduling.Scheduler.run(Scheduler.java:237)
    at org.ballerinalang.jvm.scheduling.Scheduler.runSafely(Scheduler.java:207)
    at java.lang.Thread.run(Unknown Source)

[2019-11-21 12:17:32,502] SEVERE {b7a.log.crash} - org.ballerinalang.jvm.types.BRecordType.<init>(Ljava/lang/String;Lorg/ballerinalang/jvm/types/BPackage;IZI)V 
java.lang.NoSuchMethodError: org.ballerinalang.jvm.types.BRecordType.<init>(Ljava/lang/String;Lorg/ballerinalang/jvm/types/BPackage;IZI)V
    at ballerina.lang_annotations.___init.$createTypeInstances(lang.annotations)
    at ballerina.lang_annotations.___init.$createTypes(lang.annotations)
    at ballerina.lang_annotations.___init.$currentModuleInit(lang.annotations)
    at ballerina.lang_annotations.___init.ballerina_lang_annotations__init_(lang.annotations:65535)
    at 13473.upload_to_ftp.___init.$moduleInit(upload_to_ftp:65535)
    at 13473.upload_to_ftp.___init.$lambda$$moduleInit$(upload_to_ftp)
    at org.ballerinalang.jvm.scheduling.SchedulerItem.execute(Scheduler.java:486)
    at org.ballerinalang.jvm.scheduling.Scheduler.run(Scheduler.java:237)
    at org.ballerinalang.jvm.scheduling.Scheduler.runSafely(Scheduler.java:207)
    at java.lang.Thread.run(Unknown Source)```

Answer 1

要试用Ballerina Integrator示例，请确保已安装Ballerina Integrator安装程序并使用它来运行示例。您可以从here下载最新的Ballerina Integrator。

要检查您是否正在执行Ballerina Integrator，请执行which ballerina命令并确认它与<EI_HOME>/ballerina-integrator/bin/ballerina相似。