我使用maven构建了大量的项目。我在几个版本中遇到以下错误： [WARNING] Could not transfer metadata edu.uiuc.fs:aimutils/maven-metadata.xml from/to private-internal-repository (http://artifactory.fs.illinois.edu/artifactory/private-internal-repository): Not authorized 它只在尝试拉取元数据时发生，而实际上拉取jar似乎起作用。所以，我假设这不是一个帐户/密码问题。
在windows环境下工作，maven版本是3.6.2。
如何解决此问题？
完整跟踪如下：

[WARNING] Could not transfer metadata edu.uiuc.fs:aimutils/maven-metadata.xml from/to private-internal-repository (http://artifactory.fs.illinois.edu/artifactory/private-internal-repository): Not authorized
org.eclipse.aether.transfer.MetadataTransferException: Could not transfer metadata edu.uiuc.fs:aimutils/maven-metadata.xml from/to private-internal-repository (http://artifactory.fs.illinois.edu/artifactory/private-internal-repository): Not authorized
    at org.eclipse.aether.connector.basic.MetadataTransportListener.transferFailed (MetadataTransportListener.java:52)
    at org.eclipse.aether.connector.basic.BasicRepositoryConnector$TaskRunner.run (BasicRepositoryConnector.java:369)
    at org.eclipse.aether.util.concurrency.RunnableErrorForwarder$1.run (RunnableErrorForwarder.java:75)
    at org.eclipse.aether.connector.basic.BasicRepositoryConnector$DirectExecutor.execute (BasicRepositoryConnector.java:644)
    at org.eclipse.aether.connector.basic.BasicRepositoryConnector.get (BasicRepositoryConnector.java:235)
    at org.eclipse.aether.internal.impl.DefaultMetadataResolver$ResolveTask.run (DefaultMetadataResolver.java:573)
    at org.eclipse.aether.util.concurrency.RunnableErrorForwarder$1.run (RunnableErrorForwarder.java:75)
    at java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:615)
    at java.lang.Thread.run (Thread.java:745)
Caused by: org.apache.maven.wagon.authorization.AuthorizationException: Not authorized
    at org.apache.maven.wagon.providers.http.wagon.shared.AbstractHttpClientWagon.fillInputData (AbstractHttpClientWagon.java:1145)
    at org.apache.maven.wagon.providers.http.wagon.shared.AbstractHttpClientWagon.fillInputData (AbstractHttpClientWagon.java:1094)
    at org.apache.maven.wagon.StreamWagon.getInputStream (StreamWagon.java:126)
    at org.apache.maven.wagon.StreamWagon.getIfNewer (StreamWagon.java:88)
    at org.apache.maven.wagon.StreamWagon.get (StreamWagon.java:61)
    at org.eclipse.aether.transport.wagon.WagonTransporter$GetTaskRunner.run (WagonTransporter.java:567)
    at org.eclipse.aether.transport.wagon.WagonTransporter.execute (WagonTransporter.java:435)
    at org.eclipse.aether.transport.wagon.WagonTransporter.get (WagonTransporter.java:412)
    at org.eclipse.aether.connector.basic.BasicRepositoryConnector$GetTaskRunner.runTask (BasicRepositoryConnector.java:457)
    at org.eclipse.aether.connector.basic.BasicRepositoryConnector$TaskRunner.run (BasicRepositoryConnector.java:364)
    at org.eclipse.aether.util.concurrency.RunnableErrorForwarder$1.run (RunnableErrorForwarder.java:75)
    at org.eclipse.aether.connector.basic.BasicRepositoryConnector$DirectExecutor.execute (BasicRepositoryConnector.java:644)
    at org.eclipse.aether.connector.basic.BasicRepositoryConnector.get (BasicRepositoryConnector.java:235)
    at org.eclipse.aether.internal.impl.DefaultMetadataResolver$ResolveTask.run (DefaultMetadataResolver.java:573)
    at org.eclipse.aether.util.concurrency.RunnableErrorForwarder$1.run (RunnableErrorForwarder.java:75)
    at java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:615)
    at java.lang.Thread.run (Thread.java:745)