公证人无法安装Corda服务

问题描述

我试图通过在我的应用程序中添加r3提供的toolkit作为corrdapp的依赖关系来配置解决方案中的业务网络运营商服务。我能够构建该应用程序，但是当我运行节点时，我的公证人报错了

更新

我正在添加日志

    [ERROR] 2020-09-04T14:21:15,399Z [main] internal.Node. - Unable to install Corda service com.r3.businessnetworks.membership.flows.bno.service.BNOConfigurationService -  [errorCode=dfc7g6,moreinformationAt=https://errors.corda.net/OS/4.5/dfc7g6]
java.lang.reflect.InvocationTargetException: null
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.8.0_201]
    [...]
    at net.corda.node.Corda.main(Corda.kt:13) ~[corda-node-4.5.jar:?]
Caused by: java.lang.NullPointerException
    at com.r3.businessnetworks.membership.flows.ConfigUtils.loadConfig(ConfigUtils.kt:16) ~[?:?]
    at com.r3.businessnetworks.membership.flows.bno.service.BNOConfigurationService.<init>(BNOConfigurationService.kt:21) ~[?:?]
    ... 33 more
[ERROR] 2020-09-04T14:21:15,458Z [main] internal.NodeStartupLogging. - Exception during node startup -  [errorCode=dfc7g6,moreinformationAt=https://errors.corda.net/OS/4.5/dfc7g6]
java.lang.reflect.InvocationTargetException: null
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.8.0_201]
    [...]
    at net.corda.cliutils.CordaCliWrapperKt.start(CordaCliWrapper.kt:89) ~[corda-tools-cliutils-4.5.jar:?]
    at net.corda.node.Corda.main(Corda.kt:13) ~[corda-node-4.5.jar:?]
Caused by: java.lang.NullPointerException
    at com.r3.businessnetworks.membership.flows.ConfigUtils.loadConfig(ConfigUtils.kt:16) ~[?:?]
    at com.r3.businessnetworks.membership.flows.bno.service.BNOConfigurationService.<init>(BNOConfigurationService.kt:21) ~[?:?]
    ... 33 more

解决方法

您缺少此CorDapp的配置文件，如here所述；您必须：

在节点的config文件夹（即cordapps）内创建一个node-folder/cordapps/config文件夹。
在该文件夹中创建一个membership-service.conf文件。

在该文件中添加：

// Whitelist of accepted BNOs. Attempt to communicate to not whitelisted 
// BNO would result into an exception
bnoWhitelist = ["O=BNO,L=New York,C=US","O=BNO,L=London,C=GB"]

// Name of the notary to use for BNO transactions such as membership approval
notaryName = "O=Notary,L=Longon,C=GB"

您使用的CorDapp依赖于配置文件（上面的3个步骤创建了该文件），并且在缺少NullPointerException时会导致它。要了解有关CorDapp配置文件的更多信息，请阅读my article。

在旁注中，根据this；您使用的CorDapp将于2020年9月31日弃用。

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