##求助 在跟着左用户登录注册后端的时候，测试向数据库添加一条数据出现bug，我后端不太精通， #用户中心项目# Internal Error occurred. org.junit.platform.commons.JUnitException: TestEngine with ID 'junit-vintage' failed to discover tests at org.junit.platform.launcher.core.EngineDiscoveryOrchestrator.discoverEngineRoot(EngineDiscoveryOrchestrator.java:160) ............... Caused by: org.junit.platform.commons.JUnitException: ClassSelector [className = 'com.zaki.usercenter.SampleTest'] resolution failed at org.junit.platform.launcher.listeners.discovery.AbortOnFailureLauncherDiscoveryListener.selectorProcessed(AbortOnFailureLauncherDiscoveryListener.java:39) at org.junit.platform.engine.support.discovery.EngineDiscoveryRequestResolution.resolveCompletely(EngineDiscoveryRequestResolution.java:102) at org.junit.platform.engine.support.discovery.EngineDiscoveryRequestResolution.run(EngineDiscoveryRequestResolution.java:82) at org.junit.platform.engine.support.discovery.EngineDiscoveryRequestResolver.resolve(EngineDiscoveryRequestResolver.java:113) at org.junit.vintage.engine.discovery.VintageDiscoverer.discover(VintageDiscoverer.java:42) at org.junit.vintage.engine.VintageTestEngine.discover(VintageTestEngine.java:64) at org.junit.platform.launcher.core.EngineDiscoveryOrchestrator.discoverEngineRoot(EngineDiscoveryOrchestrator.java:152) ... 13 more Caused by: org.junit.platform.commons.PreconditionViolationException: Could not load class with name: com.zaki.usercenter.SampleTest at org.junit.platform.engine.discovery.ClassSelector.lambda$getJavaClass$0(ClassSelector.java:75) at org.junit.platform.commons.function.Try$Failure.getOrThrow(Try.java:335) at org.junit.platform.engine.discovery.ClassSelector.getJavaClass(ClassSelector.java:74) at org.junit.vintage.engine.discovery.ClassSelectorResolver.resolve(ClassSelectorResolver.java:47) at org.junit.platform.engine.support.discovery.EngineDiscoveryRequestResolution.lambda$resolve$2(EngineDiscoveryRequestResolution.java:134) ... org.junit.platform.engine.support.discovery.EngineDiscoveryRequestResolution.resolve(EngineDiscoveryRequestResolution.java:185) at org.junit.platform.engine.support.discovery.EngineDiscoveryRequestResolution.resolve(EngineDiscoveryRequestResolution.java:125) at org.junit.platform.engine.support.discovery.EngineDiscoveryRequestResolution.resolveCompletely(EngineDiscoveryRequestResolution.java:91) ... 18 more Caused by: java.lang.ClassNotFoundException: com.zaki.usercenter.SampleTest ....