can't update matlab 2020a

Question

Nikita Gvardi 2020-5-27

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/535348-can-t-update-matlab-2020a

回答： Yuze Zou 2020-12-18

When trying to update matlab 2020a got "Something unexpected occurred" error - log data provided below.

(May 27, 2020 14:21:18) Stopping task MATLAB R2020a Startup Accelerator
(May 27, 2020 14:21:40) Something unexpected occurred.: This is not common.
 To resolve this issue, contact Technical Support.
	at com.mathworks.update_installer.ExceptionHandlerImpl.createUpdateInstallerException(Unknown Source)
	at com.mathworks.update_installer.ExceptionHandlerImpl.processException(Unknown Source)
	at com.mathworks.update_installer.UpdateInstallerService.updateInstallation(Unknown Source)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at com.mathworks.installservicehandler.JsonPassThroughResponseWrapper.getData(JsonPassThroughResponseWrapper.java:24)
	at com.mathworks.installservicehandler.JsonPassThroughResponseWrapper.getData(JsonPassThroughResponseWrapper.java:10)
	at com.mathworks.laisserver.impl.helper.RequestHandler.handleRequest(RequestHandler.java:44)
	at com.mathworks.laisserver.impl.JsonServlet.doPost(JsonServlet.java:27)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:755)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:848)
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:669)
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:457)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137)
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:557)
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231)
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1075)
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:384)
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193)
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1009)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)
	at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:255)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
	at org.eclipse.jetty.server.Server.handle(Server.java:364)
	at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:488)
	at org.eclipse.jetty.server.AbstractHttpConnection.content(AbstractHttpConnection.java:943)
	at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.content(AbstractHttpConnection.java:1004)
	at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:861)
	at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:240)
	at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82)
	at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:628)
	at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:52)
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)
	at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543)
	at java.lang.Thread.run(Thread.java:748)
Caused by: java.net.SocketTimeoutException: connect timed out
	at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
	at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:85)
	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
	at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
	at java.net.Socket.connect(Socket.java:589)
	at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:666)
	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
	at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264)
	at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367)
	at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:191)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1199)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
	at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:177)
	at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:162)
	at com.mathworks.instutil.URLConnectionFactoryImpl.createURLConnection(URLConnectionFactoryImpl.java:31)
	at com.mathworks.instutil.DownloaderImpl.downloadFile(DownloaderImpl.java:55)
	at com.mathworks.instutil.DownloaderImpl.download(DownloaderImpl.java:42)
	at com.mathworks.install_impl.input.UpdateComponentDownloader.download(Unknown Source)
	at com.mathworks.install_impl.InstallableComponentImpl.download(Unknown Source)
	at com.mathworks.install_impl.ProductInstallerImpl.updateProducts(Unknown Source)
	at com.mathworks.install_impl.InstallerImpl.update(Unknown Source)
	at com.mathworks.install_task.UpdateTask.execute(UpdateTask.java:46)
	at com.mathworks.install_task.AbstractDefaultInstallTask.call(AbstractDefaultInstallTask.java:24)
	... 35 more
(May 27, 2020 14:26:54) Update session complete.

4 个评论
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Star Strider 2020-5-27

编辑：Star Strider 2020-5-27

I also had problems with R2020a Update 1. What everntually worked for me was to launch the update from MATLAB, close MATLAB, wait 15 minutes, then try the update again.

EDIT —

I did the same approach with Update 2 just now, and had no problems. It is necessary to wait for everything related to MATLAB to shut down before installing the Update. In Windows, use Task Manager and Resource Monitor to be certain those conditions are met.

Nikita Gvardi 2020-5-28