无法在Spring工具套件4中安装插件

Question

我正在尝试在Spring Tools Suite中安装插件，但是出现了很多错误，似乎无法修复。

以下是错误：

java.net.UnknownHostException: Éste es normalmente un error temporal durante la resolución de nombres de host y significa que el servidor local no recibió una respuesta de un servidor autoritativo (marketplace.eclipse.org)
    at java.net.Inet4AddressImpl.lookupAllHostAddr(Native Method)
    at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:928)
    at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1323)
    at java.net.InetAddress.getAllByName0(InetAddress.java:1276)
    at java.net.InetAddress.getAllByName(InetAddress.java:1192)
    at java.net.InetAddress.getAllByName(InetAddress.java:1126)
    at org.apache.http.impl.conn.SystemDefaultDnsResolver.resolve(SystemDefaultDnsResolver.java:45)
    at org.apache.http.impl.conn.DefaultClientConnectionOperator.resolveHostname(DefaultClientConnectionOperator.java:263)
    at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:162)
    at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:144)
    at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:134)
    at org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:610)
    at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:445)
    at org.apache.http.impl.client.AbstractHttpClient.doExecute(AbstractHttpClient.java:835)
    at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:83)
    at org.eclipse.ecf.provider.filetransfer.httpclient4.HttpClientRetrieveFileTransfer.performConnect(HttpClientRetrieveFileTransfer.java:1084)
    at org.eclipse.ecf.provider.filetransfer.httpclient4.HttpClientRetrieveFileTransfer.access$0(HttpClientRetrieveFileTransfer.java:1075)
    at org.eclipse.ecf.provider.filetransfer.httpclient4.HttpClientRetrieveFileTransfer$1.performFileTransfer(HttpClientRetrieveFileTransfer.java:1071)
    at org.eclipse.ecf.filetransfer.FileTransferJob.run(FileTransferJob.java:74)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)

无法打开Eclipse Marketplace

This is most often caused by a problem with your internet connection. Please check your internet connection and retry.

java.net.UnknownHostException: marketplace.eclipse.org

    at java.net.InetAddress.getAllByName0(InetAddress.java:1280)

    at java.net.InetAddress.getAllByName(InetAddress.java:1192)

    at java.net.InetAddress.getAllByName(InetAddress.java:1126)

    at org.apache.http.impl.conn.SystemDefaultDnsResolver.resolve(SystemDefaultDnsResolver.java:45)

    at org.apache.http.impl.conn.DefaultClientConnectionOperator.resolveHostname(DefaultClientConnectionOperator.java:263)

    at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:162)

    at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:144)

    at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:134)

    at org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:610)

    at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:445)

    at org.apache.http.impl.client.AbstractHttpClient.doExecute(AbstractHttpClient.java:835)

    at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:83)

    at org.eclipse.ecf.provider.filetransfer.httpclient4.HttpClientRetrieveFileTransfer.performConnect(HttpClientRetrieveFileTransfer.java:1084)

    at org.eclipse.ecf.provider.filetransfer.httpclient4.HttpClientRetrieveFileTransfer.access$0(HttpClientRetrieveFileTransfer.java:1075)

    at org.eclipse.ecf.provider.filetransfer.httpclient4.HttpClientRetrieveFileTransfer$1.performFileTransfer(HttpClientRetrieveFileTransfer.java:1071)

    at org.eclipse.ecf.filetransfer.FileTransferJob.run(FileTransferJob.java:74)

    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)

我已经尝试过通常的嫌疑犯，这是我的网络连接：

并且我已经在属性diles和路径中添加了-Djava.net.preferIPv4Stack = true。

任何想法我该怎么办？

编辑：

我发现在命令行中可以执行ping操作，我总是得到相同的消息：ping请求无法找到主机。我忘了提到这个问题在工作中发生