javax.jdo.JDOException : Unexpected error during precommit 异常-6ren

javax.jdo.JDOException : Unexpected error during precommit 异常

转载作者：行者123 更新时间：2023-11-29 03:34:52

今天我在我的数据模型中引入了一些新字段并将其推送到网上，然后我开始看到这个异常。有人知道这种情况何时发生吗？

org.datanucleus.ObjectManagerImpl preCommit: java.lang.NullPointerException
E 2013-04-18 12:45:09.321
X.servlet.util.GAELogger logError: javax.jdo.JDOException: Unexpected error during precommit
    at org.datanucleus.api.jdo.NucleusJDOHelper.getJDOExceptionForNucleusException(NucleusJDOHelper.java:566)
    at org.datanucleus.api.jdo.JDOTransaction.commit(JDOTransaction.java:163)
    at X.db.dao.migrator.UserDataMigrator.migrate(UserDataMigrator.java:57)
    at X.db.dao.user.UserDataDAO.getUserDataByKey(UserDataDAO.java:84)
    at X.db.dao.user.UserDataDAO.getUserByEmailId(UserDataDAO.java:114)
    at X.servlet.authenticate.Signin.doPost(Signin.java:65)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166)
    at X.filter.GuestFilter.doFilter(GuestFilter.java:39)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
    at X.filter.DatastoreCapabilityFilter.doFilter(DatastoreCapabilityFilter.java:44)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
    at X.filter.FileFilter.doFilter(FileFilter.java:55)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
    at com.google.apphosting.utils.servlet.ParseBlobUploadFilter.doFilter(ParseBlobUploadFilter.java:125)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
    at com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter(SaveSessionFilter.java:35)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
    at com.google.apphosting.utils.servlet.JdbcMySqlConnectionCleanupFilter.doFilter(JdbcMySqlConnectionCleanupFilter.java:57)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
    at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
    at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388)
    at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
    at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
    at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
    at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
    at com.google.apphosting.runtime.jetty.AppVersionHandlerMap.handle(AppVersionHandlerMap.java:266)
    at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
    at org.mortbay.jetty.Server.handle(Server.java:326)
    at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
    at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:923)
    at com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable(RpcRequestParser.java:76)
    at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
    at com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java:146)
    at com.google.apphosting.runtime.JavaRuntime$RequestRunnable.run(JavaRuntime.java:438)
    at com.google.tracing.TraceContext$TraceContextRunnable.runInContext(TraceContext.java:480)
    at com.google.tracing.TraceContext$TraceContextRunnable$1.run(TraceContext.java:487)
    at com.google.tracing.TraceContext.runInContext(TraceContext.java:774)
    at com.google.tracing.TraceContext$DoInTraceContext.runInContext(TraceContext.java:751)
    at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContextNoUnref(TraceContext.java:342)
    at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContext(TraceContext.java:334)
    at com.google.tracing.TraceContext$TraceContextRunnable.run(TraceContext.java:484)
    at com.google.apphosting.runtime.ThreadGroupPool$PoolEntry.run(ThreadGroupPool.java:251)
    at java.lang.Thread.run(Thread.java:722)
NestedThrowablesStackTrace:
java.lang.NullPointerException
    at com.google.appengine.datanucleus.scostore.FKListStore.getIndexPropertyName(FKListStore.java:965)
    at com.google.appengine.datanucleus.scostore.FKListStore.getFilterPredicates(FKListStore.java:940)
    at com.google.appengine.datanucleus.scostore.FKListStore.listIterator(FKListStore.java:383)
    at com.google.appengine.datanucleus.scostore.FKListStore.listIterator(FKListStore.java:349)
    at com.google.appengine.datanucleus.scostore.FKListStore.iterator(FKListStore.java:342)
    at org.datanucleus.store.types.sco.backed.List.loadFromStore(List.java:304)
    at org.datanucleus.store.types.sco.backed.List.load(List.java:277)
    at org.datanucleus.state.JDOStateManager.loadUnloadedFields(JDOStateManager.java:1299)
    at org.datanucleus.state.JDOStateManager.runReachability(JDOStateManager.java:2266)
    at org.datanucleus.store.fieldmanager.ReachabilityFieldManager.processPersistable(ReachabilityFieldManager.java:69)
    at org.datanucleus.store.fieldmanager.ReachabilityFieldManager.storeObjectField(ReachabilityFieldManager.java:120)
    at org.datanucleus.state.AbstractStateManager.providedObjectField(AbstractStateManager.java:1447)
    at X.db.model.user.UserDTO.jdoProvideField(UserDTO.java)
    at X.db.model.user.UserDTO.jdoProvideFields(UserDTO.java)
    at org.datanucleus.state.AbstractStateManager.provideFields(AbstractStateManager.java:1515)
    at org.datanucleus.state.JDOStateManager.runReachability(JDOStateManager.java:2281)
    at org.datanucleus.ObjectManagerImpl.performReachabilityAtCommit(ObjectManagerImpl.java:4324)
    at org.datanucleus.ObjectManagerImpl.preCommit(ObjectManagerImpl.java:4149)
    at org.datanucleus.ObjectManagerImpl.transactionPreCommit(ObjectManagerImpl.java:428)
    at org.datanucleus.TransactionImpl.internalPreCommit(TransactionImpl.java:398)
    at org.datanucleus.TransactionImpl.commit(TransactionImpl.java:287)
    at org.datanucleus.api.jdo.JDOTransaction.commit(JDOTransaction.java:96)
    at X.db.dao.migrator.UserDataMigrator.migrate(UserDataMigrator.java:57)
    at X.db.dao.user.UserDataDAO.getUserDataByKey(UserDataDAO.java:84)
    at X.db.dao.user.UserDataDAO.getUserByEmailId(UserDataDAO.java:114)
    at X.servlet.authenticate.Signin.doPost(Signin.java:65)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166)
    at X.filter.GuestFilter.doFilter(GuestFilter.java:39)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
    at X.filter.DatastoreCapabilityFilter.doFilter(DatastoreCapabilityFilter.java:44)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
    at X.filter.FileFilter.doFilter(FileFilter.java:55)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
    at com.google.apphosting.utils.servlet.ParseBlobUploadFilter.doFilter(ParseBlobUploadFilter.java:125)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
    at com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter(SaveSessionFilter.java:35)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
    at com.google.apphosting.utils.servlet.JdbcMySqlConnectionCleanupFilter.doFilter(JdbcMySqlConnectionCleanupFilter.java:57)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
    at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
    at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388)
    at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
    at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
    at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
    at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
    at com.google.apphosting.runtime.jetty.AppVersionHandlerMap.handle(AppVersionHandlerMap.java:266)
    at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
    at org.mortbay.jetty.Server.handle(Server.java:326)
    at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
    at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:923)
    at com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable(RpcRequestParser.java:76)
    at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
    at com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java:146)
    at com.google.apphosting.runtime.JavaRuntime$RequestRunnable.run(JavaRuntime.java:438)
    at com.google.tracing.TraceContext$TraceContextRunnable.runInContext(TraceContext.java:480)
    at com.google.tracing.TraceContext$TraceContextRunnable$1.run(TraceContext.java:487)
    at com.google.tracing.TraceContext.runInContext(TraceContext.java:774)
    at com.google.tracing.TraceContext$DoInTraceContext.runInContext(TraceContext.java:751)
    at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContextNoUnref(TraceContext.java:342)
    at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContext(TraceContext.java:334)
    at com.google.tracing.TraceContext$TraceContextRunnable.run(TraceContext.java:484)
    at com.google.apphosting.runtime.ThreadGroupPool$PoolEntry.run(ThreadGroupPool.java:251)
    at java.lang.Thread.run(Thread.java:722)

E 2013-04-18 12:45:10.453
X.servlet.util.GAELogger logError: java.lang.NullPointerException
    at com.google.appengine.datanucleus.scostore.FKListStore.getIndexPropertyName(FKListStore.java:965)
    at com.google.appengine.datanucleus.scostore.FKListStore.getFilterPredicates(FKListStore.java:940)
    at com.google.appengine.datanucleus.scostore.FKListStore.listIterator(FKListStore.java:383)
    at com.google.appengine.datanucleus.scostore.FKListStore.listIterator(FKListStore.java:349)
    at com.google.appengine.datanucleus.scostore.FKListStore.iterator(FKListStore.java:342)
    at org.datanucleus.store.types.sco.backed.List.loadFromStore(List.java:304)
    at org.datanucleus.store.types.sco.backed.List.writeReplace(List.java:1181)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at java.io.ObjectStreamClass.invokeWriteReplace(ObjectStreamClass.java:1049)
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1148)
    at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1545)
    at java.io.ObjectOutputStream.defaultWriteObject(ObjectOutputStream.java:455)
    at X.db.model.user.PersonProfileDTO.writeObject(PersonProfileDTO.java)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:962)
    at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1497)
    at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1433)
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1191)
    at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:363)
    at java.util.ArrayList.writeObject(ArrayList.java:710)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:962)
    at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1497)
    at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1433)
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1191)
    at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1545)
    at java.io.ObjectOutputStream.defaultWriteObject(ObjectOutputStream.java:455)
    at X.db.model.user.UserDTO.writeObject(UserDTO.java)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:962)
    at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1497)
    at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1433)
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1191)
    at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:363)
    at com.google.appengine.api.memcache.MemcacheSerialization.serialize(MemcacheSerialization.java:248)
    at com.google.appengine.api.memcache.AsyncMemcacheServiceImpl.serializeValue(AsyncMemcacheServiceImpl.java:276)
    at com.google.appengine.api.memcache.AsyncMemcacheServiceImpl.doPut(AsyncMemcacheServiceImpl.java:413)
    at com.google.appengine.api.memcache.AsyncMemcacheServiceImpl.put(AsyncMemcacheServiceImpl.java:465)
    at com.google.appengine.api.memcache.MemcacheServiceImpl.put(MemcacheServiceImpl.java:69)
    at com.google.appengine.api.memcache.jsr107cache.GCache.put(Unknown Source)
    at X.db.cache.CacheService.putUser(CacheService.java:92)
    at X.db.dao.user.UserDataDAO.getUserDataByKey(UserDataDAO.java:90)
    at X.db.dao.user.UserDataDAO.getUserByEmailId(UserDataDAO.java:114)
    at X.servlet.authenticate.Signin.doPost(Signin.java:65)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166)
    at X.filter.GuestFilter.doFilter(GuestFilter.java:39)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
    at X.filter.DatastoreCapabilityFilter.doFilter(DatastoreCapabilityFilter.java:44)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
    at X.filter.FileFilter.doFilter(FileFilter.java:55)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
    at com.google.apphosting.utils.servlet.ParseBlobUploadFilter.doFilter(ParseBlobUploadFilter.java:125)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
    at com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter(SaveSessionFilter.java:35)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
    at com.google.apphosting.utils.servlet.JdbcMySqlConnectionCleanupFilter.doFilter(JdbcMySqlConnectionCleanupFilter.java:57)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
    at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
    at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388)
    at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
    at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
    at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
    at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
    at com.google.apphosting.runtime.jetty.AppVersionHandlerMap.handle(AppVersionHandlerMap.java:266)
    at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
    at org.mortbay.jetty.Server.handle(Server.java:326)
    at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
    at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:923)
    at com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable(RpcRequestParser.java:76)
    at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
    at com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java:146)
    at com.google.apphosting.runtime.JavaRuntime$RequestRunnable.run(JavaRuntime.java:438)
    at com.google.tracing.TraceContext$TraceContextRunnable.runInContext(TraceContext.java:480)
    at com.google.tracing.TraceContext$TraceContextRunnable$1.run(TraceContext.java:487)
    at com.google.tracing.TraceContext.runInContext(TraceContext.java:774)
    at com.google.tracing.TraceContext$DoInTraceContext.runInContext(TraceContext.java:751)
    at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContextNoUnref(TraceContext.java:342)
    at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContext(TraceContext.java:334)
    at com.google.tracing.TraceContext$TraceContextRunnable.run(TraceContext.java:484)
    at com.google.apphosting.runtime.ThreadGroupPool$PoolEntry.run(ThreadGroupPool.java:251)
    at java.lang.Thread.run(Thread.java:722)

概述我所做的事情:我有一个A类

我有

@Persistent
@Element(dependent = "true")
@Order(extensions = @Extension(vendorName = "datanucleus", key = "list-ordering", value = "index ASC"))
private List<B> profiles;

现在我在 B 中添加了:

@Persistent
@Element(dependent = "true")
private List<C> customSections;

C 内部有:

@Persistent
@Element(dependent = "true")
@Order(extensions = @Extension(vendorName = "datanucleus", key = "list-ordering", value = "index ASC"))
private List<D> entries;

D 有:

@Persistent
private Integer index;

B 还有:

@Persistent
@Element(dependent = "true")
@Order(extensions = @Extension(vendorName = "datanucleus", key = "list-ordering", value = "index ASC"))
private List<E> configurations;

我向 E 添加了:

@Persistent
@Element(dependent = "true")
@Order(extensions = @Extension(vendorName = "datanucleus", key = "list-ordering", value = "index ASC"))
private List<F> sections;

F 内部有:

@Persistent
private Integer index;

我有一个列表字段，我现在设置为空。

最佳答案

好的，所以我发现问题是 customSections 上没有索引。所以它应该是:

@Persistent
@Element(dependent = "true")
@Order(extensions = @Extension(vendorName = "datanucleus", key = "list-ordering", value = "index ASC"))
private List<C> customSections;

希望这对某人有帮助:)

Code第968行似乎是相关的。

关于javax.jdo.JDOException : Unexpected error during precommit 异常，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/16096928/

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eclipse - Java 运行时环境检测到 fatal error : Internal Error ; Error: ShouldNotReachHere()
我不知道出了什么问题，因为我用 Java 编程了大约一年，从来没有遇到过这个错误。在一分钟前在 Eclipse 中编译和运行工作，现在我得到这个错误: #A fatal error has been
postgresql - Postgres : Error [42601] Error: Syntax error at or near "$2". 执行查询时出错
SELECT to_char(messages. TIME, 'YYYY/MM/DD') AS FullDate, to_char(messages. TIME, 'MM/DD
.net - VB.NET : error BC30037, followed by error BC30627 and error BC30465
我收到这些错误: AnonymousPath\Anonymized.vb : error BC30037: Character is not valid. AnonymousPath\Anonymiz
sungridengine - 网格引擎 : error: commlib error: got select error (connection refused)
我刚刚安装了 gridengine 并在执行 qstat 时出现错误: error: commlib error: got select error (Connection refused) erro
php - 尖叫 : Error suppresion ignored for Parse error: syntax error PHP
嗨，我正在学习 PHP，我从 CRUD 系统开始，我在 Windows 上安装了 WAMP 服务器，当我运行它时，我收到以下错误消息。 SCREAM: Error suppression ignore
swift - fatal error : Unresolved error Error Domain=NSCocoaErrorDomain Code=134140
我刚刚开始一个新项目，我正在学习核心数据教程，可以找到:https://www.youtube.com/watch?v=zZJpsszfTHM 我似乎无法弄清楚为什么会抛出此错误。我有一个名为“Exp
c++ - JENKINS BUILD ERROR fatal error C1853 : precompiled header error
当我使用 Jenkins 运行新构建时，出现以下错误: "FilePathY\XXX.cpp : fatal error C1853: 'FilePathZ\XXX.pch' precompiled

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javax.jdo.JDOException : Unexpected error during precommit 异常