Status Page Error

Port 8989 is correct BTW, I changed the default.

Hi,

Any solution to solve this warning ?

I have the same message after upgrading my solr to 9.6 with schema version of 4.3.8.

Here is the current message I get on the report page and on the Search api main page.

File schema_extra_types.xml could not be fetched from Solr server for validation: Solr endpoint http://solr-search.internal:8080/ internal Solr server error (code: 500, body: { "responseHeader":{ "status":500, "QTime":1}, "error":{ "msg":"Cannot invoke \"java.net.URL.toURI()\" because the return value of \"java.lang.ClassLoader.getResource(String)\" is null", "trace":"java.lang.NullPointerException: Cannot invoke \"java.net.URL.toURI()\" because the return value of \"java.lang.ClassLoader.getResource(String)\" is null\n\tat org.apache.solr.handler.admin.ShowFileRequestHandler.getAdminFileFromFileSystem(ShowFileRequestHandler.java:365)\n\tat org.apache.solr.handler.admin.ShowFileRequestHandler.showFromFileSystem(ShowFileRequestHandler.java:199)\n\tat org.apache.solr.handler.admin.ShowFileRequestHandler.handleRequestBody(ShowFileRequestHandler.java:141)\n\tat org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:226)\n\tat org.apache.solr.core.SolrCore.execute(SolrCore.java:2886)\n\tat org.apache.solr.servlet.HttpSolrCall.executeCoreRequest(HttpSolrCall.java:910)\n\tat org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:596)\n\tat org.apache.solr.servlet.SolrDispatchFilter.dispatch(SolrDispatchFilter.java:262)\n\tat org.apache.solr.servlet.SolrDispatchFilter.lambda$doFilter$0(SolrDispatchFilter.java:219)\n\tat org.apache.solr.servlet.ServletUtils.traceHttpRequestExecution2(ServletUtils.java:249)\n\tat org.apache.solr.servlet.ServletUtils.rateLimitRequest(ServletUtils.java:215)\n\tat org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:213)\n\tat org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:195)\n\tat org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:210)\n\tat org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)\n\tat org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:527)\n\tat org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:131)\n\tat org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:598)\n\tat org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)\n\tat org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:223)\n\tat org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1580)\n\tat org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)\n\tat org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1384)\n\tat org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:176)\n\tat org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:484)\n\tat org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1553)\n\tat org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:174)\n\tat org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1306)\n\tat org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:129)\n\tat org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:149)\n\tat org.eclipse.jetty.server.handler.InetAccessHandler.handle(InetAccessHandler.java:228)\n\tat org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:141)\n\tat org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)\n\tat org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:301)\n\tat org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)\n\tat org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:822)\n\tat org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)\n\tat org.eclipse.jetty.server.Server.handle(Server.java:563)\n\tat org.eclipse.jetty.server.HttpChannel$RequestDispatchable.dispatch(HttpChannel.java:1598)\n\tat org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:753)\n\tat org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:501)\n\tat org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:287)\n\tat org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:314)\n\tat org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:100)\n\tat org.eclipse.jetty.io.SelectableChannelEndPoint$1.run(SelectableChannelEndPoint.java:53)\n\tat org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.runTask(AdaptiveExecutionStrategy.java:421)\n\tat org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.consumeTask(AdaptiveExecutionStrategy.java:390)\n\tat org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.tryProduce(AdaptiveExecutionStrategy.java:277)\n\tat org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.run(AdaptiveExecutionStrategy.java:199)\n\tat org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:411)\n\tat org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:969)\n\tat org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.doRunJob(QueuedThreadPool.java:1194)\n\tat org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1149)\n\tat java.base/java.lang.Thread.run(Thread.java:840)\n", "code":500}} , message: Solr HTTP error: OK (500) { "responseHeader":{ "status":500, "QTime":1}, "error":{ "msg":"Cannot invoke \"java.net.URL.toURI()\" because the return value of \"java.lang.ClassLoader.getResource(String)\" is null", "trace":"java.lang.NullPointerException: Cannot invoke \"java.net.URL.toURI()\" because the return value of \"java.lang.ClassLoader.getResource(String)\" is null\n\tat org.apache.solr.handler.admin.ShowFileRequestHandler.getAdminFileFromFileSystem(ShowFileRequestHandler.java:365)\n\tat org.apache.solr.handler.admin.ShowFileRequestHandler.showFromFileSystem(ShowFileRequestHandler.java:199)\n\tat org.apache.solr.handler.admin.ShowFileRequestHandler.handleRequestBody(ShowFileRequestHandler.java:141)\n\tat org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:226)\n\tat org.apache.solr.core.SolrCore.execute(SolrCore.java:2886)\n\tat org.apache.solr.servlet.HttpSolrCall.executeCoreRequest(HttpSolrCall.java:910)\n\tat org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:596)\n\tat org.apache.solr.servlet.SolrDispatchFilter.dispatch(SolrDispatchFilter.java:262)\n\tat org.apache.solr.servlet.SolrDispatchFilter.lambda$doFilter$0(SolrDispatchFilter.java:219)\n\tat org.apache.solr.servlet.ServletUtils.traceHttpRequestExecution2(ServletUtils.java:249)\n\tat org.apache.solr.servlet.ServletUtils.rateLimitRequest(ServletUtils.java:215)\n\tat org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:213)\n\tat org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:195)\n\tat org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:210)\n\tat org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)\n\tat org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:527)\n\tat org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:131)\n\tat org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:598)\n\tat org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)\n\tat org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:223)\n\tat org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1580)\n\tat org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)\n\tat org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1384)\n\tat org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:176)\n\tat org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:484)\n\tat org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1553)\n\tat org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:174)\n\tat org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1306)\n\tat org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:129)\n\tat org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:149)\n\tat org.eclipse.jetty.server.handler.InetAccessHandler.handle(InetAccessHandler.java:228)\n\tat org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:141)\n\tat org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)\n\tat org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:301)\n\tat org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)\n\tat org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:822)\n\tat org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)\n\tat org.eclipse.jetty.server.Server.handle(Server.java:563)\n\tat org.eclipse.jetty.server.HttpChannel$RequestDispatchable.dispatch(HttpChannel.java:1598)\n\tat org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:753)\n\tat org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:501)\n\tat org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:287)\n\tat org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:314)\n\tat org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:100)\n\tat org.eclipse.jetty.io.SelectableChannelEndPoint$1.run(SelectableChannelEndPoint.java:53)\n\tat org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.runTask(AdaptiveExecutionStrategy.java:421)\n\tat org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.consumeTask(AdaptiveExecutionStrategy.java:390)\n\tat org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.tryProduce(AdaptiveExecutionStrategy.java:277)\n\tat org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.run(AdaptiveExecutionStrategy.java:199)\n\tat org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:411)\n\tat org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:969)\n\tat org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.doRunJob(QueuedThreadPool.java:1194)\n\tat org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1149)\n\tat java.base/java.lang.Thread.run(Thread.java:840)\n", "code":500}} ).

I ended up using this:
sudo su - solr -c "/opt/solr/bin/solr create -c IAB -n data_driven_schema_configs"

This is totally wrong. It doesn't use the drupal schema. That's why the file is missing.

Also of note, I was not able to use this command from the README.md file to create a core:
`$ sudo -u solr $SOLR/bin/solr create_core -c $CORE -d $CONF -n $CORE`

Did you replace $CORE and $CONF with the required values?

BTW why don't you start Solr in cloud mode and let Drupal create the collection for you?