我在ASP.NET核心应用程序中找不到问题。 在azure上部署后，它说：内部服务器错误。 例外：
java.lang.IllegalArgumentException: Principal must not be null
at org.springframework.util.Assert.notNull(Assert.java:115) ~[spring-core-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.boot.actuate.audit.AuditEvent.<init>(AuditEvent.java:83) ~[spring-boot-actuator-1.4.0.RELEASE.jar:1.4.0.RELEASE]
at org.springframework.boot.actuate.audit.AuditEvent.<init>(AuditEvent.java:59) ~[spring-boot-actuator-1.4.0.RELEASE.jar:1.4.0.RELEASE]
at org.springframework.boot.actuate.security.AuthenticationAuditListener.onAuthenticationFailureEvent(AuthenticationAuditListener.java:67) ~[spring-boot-actuator-1.4.0.RELEASE.jar:1.4.0.RELEASE]
at org.springframework.boot.actuate.security.AuthenticationAuditListener.onApplicationEvent(AuthenticationAuditListener.java:50) ~[spring-boot-actuator-1.4.0.RELEASE.jar:1.4.0.RELEASE]
at org.springframework.boot.actuate.security.AuthenticationAuditListener.onApplicationEvent(AuthenticationAuditListener.java:34) ~[spring-boot-actuator-1.4.0.RELEASE.jar:1.4.0.RELEASE]
at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:166) ~[spring-context-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:138) ~[spring-context-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:382) ~[spring-context-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:336) ~[spring-context-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.security.authentication.DefaultAuthenticationEventPublisher.publishAuthenticationFailure(DefaultAuthenticationEventPublisher.java:124) ~[spring-security-core-4.1.1.RELEASE.jar:4.1.1.RELEASE]
at org.springframework.security.authentication.ProviderManager.prepareException(ProviderManager.java:240) ~[spring-security-core-4.1.1.RELEASE.jar:4.1.1.RELEASE]
at org.springframework.security.authentication.ProviderManager.authenticate(ProviderManager.java:233) ~[spring-security-core-4.1.1.RELEASE.jar:4.1.1.RELEASE]
at org.springframework.security.authentication.ProviderManager.authenticate(ProviderManager.java:199) ~[spring-security-core-4.1.1.RELEASE.jar:4.1.1.RELEASE]
at org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter$AuthenticationManagerDelegator.authenticate(WebSecurityConfigurerAdapter.java:454) ~[spring-security-config-4.1.1.RELEASE.jar:4.1.1.RELEASE]
at com.icentia.tracking.security.JwtFilter.doFilterInternal(JwtFilter.java:49) ~[classes/:na]
project.json：
InvalidOperationException: Can not find assembly file dotnet-razor-tooling.exe at 'D:\home\site\wwwroot\refs,D:\home\site\wwwroot\'
试图update Razor，但是id并没有帮助我。 有什么建议吗？