(Ubuntu, Idea) Marketplace Plugins are not loaded

In log file there is a lot of following fragments:

2020-05-12 09:48:26,274 [ 268867] DEBUG - .intellij.util.io.HttpRequests - connecting to https://plugins.jetbrains.com/api/search?orderBy=rating&build=IU-201.7223.91&max=9&offset=2871
2020-05-12 09:48:26,275 [ 268868] DEBUG - ntellij.util.proxy.CommonProxy - CommonProxy.select called for socket://plugins.jetbrains.com:443
2020-05-12 09:48:26,275 [ 268868] DEBUG - ntellij.util.proxy.CommonProxy - CommonProxy.select returns custom proxy for socket://plugins.jetbrains.com:443, [DIRECT]
2020-05-12 09:48:26,445 [ 269038] DEBUG - .intellij.util.io.HttpRequests - response from https://plugins.jetbrains.com/api/search?orderBy=rating&build=IU-201.7223.91&max=9&offset=2871: 200

Tried to search for specific plugin (Lombok). Here is excerpt from the log:

2020-05-12 10:03:29,883 [1172476] DEBUG - .intellij.util.io.HttpRequests - connecting to https://plugins.jetbrains.com/api/search?search=lombo&build=IU-201.7223.91&max=10000
2020-05-12 10:03:29,883 [1172476] DEBUG - ntellij.util.proxy.CommonProxy - CommonProxy.select called for socket://plugins.jetbrains.com:443
2020-05-12 10:03:29,883 [1172476] DEBUG - ntellij.util.proxy.CommonProxy - CommonProxy.select returns custom proxy for socket://plugins.jetbrains.com:443, [DIRECT]
2020-05-12 10:03:30,054 [1172647] DEBUG - .intellij.util.io.HttpRequests - response from https://plugins.jetbrains.com/api/search?search=lombo&build=IU-201.7223.91&max=10000: 200
2020-05-12 10:03:30,175 [1172768] DEBUG - ntellij.util.proxy.CommonProxy - CommonProxy.select called for https://plugins.jetbrains.com/api/search?search=lombok&build=IU-201.7223.91&max=10000
2020-05-12 10:03:30,175 [1172768] DEBUG - ntellij.util.proxy.CommonProxy - CommonProxy.select returns custom proxy for https://plugins.jetbrains.com/api/search?search=lombok&build=IU-201.7223.91&max=10000, [DIRECT]
2020-05-12 10:03:30,175 [1172768] DEBUG - .intellij.util.io.HttpRequests - connecting to https://plugins.jetbrains.com/api/search?search=lombok&build=IU-201.7223.91&max=10000
2020-05-12 10:03:30,176 [1172769] DEBUG - ntellij.util.proxy.CommonProxy - CommonProxy.select called for socket://plugins.jetbrains.com:443
2020-05-12 10:03:30,176 [1172769] DEBUG - ntellij.util.proxy.CommonProxy - CommonProxy.select returns custom proxy for socket://plugins.jetbrains.com:443, [DIRECT]
2020-05-12 10:03:30,340 [1172933] DEBUG - .intellij.util.io.HttpRequests - response from https://plugins.jetbrains.com/api/search?search=lombok&build=IU-201.7223.91&max=10000: 200

Are these the only logs generated? There are no errors inside these records. 

You could see that IntelliJ IDEA checks if there is a proxy configured (it is not), so connects to the plugins marketplace directly. After that, your local IntelliJ IDEA receives the "200" code which means that the catalog has been sent to the local computer. 

May you share the whole log? You can use JetBrains FTP share:
https://intellij-support.jetbrains.com/hc/en-us/articles/206869619-Uploading-Large-Files-for-JetBrains-Support-Team

Uploaded the whole log: idea-plugin-marketplace-amoiseev.log

I don't see any errors either, but don't see any plugins in marketplace as well.

Don't see your file. Please try to upload via https://uploads.services.jetbrains.com/, or use any public cloud. 

By the way, as a general troubleshooting step, please restart the computer. There could be an issue with network or so. 

Thank you. 

Link to log file: https://gofile.io/d/z8qxzz 

I had computer restarted multiple times - it had no effect. Still, can't see plugins on marketplace inside Idea.

BTW, is there is some way to download plugin as a file from marketplace in browser? 

Sure, every plugin has download links: https://i.imgur.com/HhtxCJa.png

The log is not full. May you quit IntelliJ IDEA, clean logs folder, reproduce the issue and share the newly generated logs compressed after that? 

I have cleared the logs. After reproducing issue there was single log file in logs folder: https://gofile.io/d/J28v0v 

Here is the error: 

Thank you! The problem solved. As I figured out - it was some kind of a clash. Previously, I tried to install Idea with JetBrains Toolbox. Something went wrong and later I installed Idea with Ubuntu Software Manager. But, when Toolbox was installed it created ~/.local/share/JetBrains directory under root. This is the cause of problem with permissions.

I cannot load the list of plugins as well. Using IntelliJ 2020.1 on ubuntu.

I foud these in the logs:

```

2020-11-30 19:09:54,212 [ 736760] INFO - gins.PluginManagerConfigurable -
java.net.MalformedURLException: Malformed URL:
at com.intellij.util.Urls.newFromEncoded(Urls.kt:63)
at com.intellij.ide.plugins.RepositoryHelper.loadPlugins(RepositoryHelper.java:101)
at com.intellij.ide.plugins.RepositoryHelper.loadPlugins(RepositoryHelper.java:86)
at com.intellij.ide.plugins.PluginManagerConfigurable.loadRepositoryPlugins(PluginManagerConfigurable.java:1549)
at com.intellij.ide.plugins.PluginManagerConfigurable.access$2000(PluginManagerConfigurable.java:73)
at com.intellij.ide.plugins.PluginManagerConfigurable$7.lambda$createPluginsPanel$3(PluginManagerConfigurable.java:382)
at com.intellij.util.RunnableCallable.call(RunnableCallable.java:20)
at com.intellij.util.RunnableCallable.call(RunnableCallable.java:11)
at com.intellij.openapi.application.impl.ApplicationImpl$1.call(ApplicationImpl.java:255)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:834)
2020-11-30 19:10:09,959 [ 752507] INFO - gins.PluginManagerConfigurable - https://plugins.jetbrains.com/
java.io.IOException: org.xml.sax.SAXParseException; lineNumber: 1; columnNumber: 3; The markup in the document preceding the root element must be well-formed.
at com.intellij.ide.plugins.PluginsMetaLoader.parsePluginList(PluginsMetaLoader.kt:136)
at com.intellij.ide.plugins.RepositoryHelper.lambda$loadPlugins$0(RepositoryHelper.java:118)
at com.intellij.ide.plugins.PluginsMetaLoader$readOrUpdateFile$2.process(PluginsMetaLoader.kt:105)
at com.intellij.util.io.HttpRequests.doProcess(HttpRequests.java:516)
at com.intellij.util.io.HttpRequests.process(HttpRequests.java:498)
at com.intellij.util.io.HttpRequests.access$100(HttpRequests.java:56)
at com.intellij.util.io.HttpRequests$RequestBuilderImpl.connect(HttpRequests.java:349)
at com.intellij.ide.plugins.PluginsMetaLoader.readOrUpdateFile(PluginsMetaLoader.kt:87)
at com.intellij.ide.plugins.RepositoryHelper.loadPlugins(RepositoryHelper.java:113)
at com.intellij.ide.plugins.RepositoryHelper.loadPlugins(RepositoryHelper.java:86)
at com.intellij.ide.plugins.PluginManagerConfigurable.loadRepositoryPlugins(PluginManagerConfigurable.java:1549)
at com.intellij.ide.plugins.PluginManagerConfigurable.access$2000(PluginManagerConfigurable.java:73)
at com.intellij.ide.plugins.PluginManagerConfigurable$7.lambda$createPluginsPanel$3(PluginManagerConfigurable.java:382)
at com.intellij.util.RunnableCallable.call(RunnableCallable.java:20)
at com.intellij.util.RunnableCallable.call(RunnableCallable.java:11)
at com.intellij.openapi.application.impl.ApplicationImpl$1.call(ApplicationImpl.java:255)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: org.xml.sax.SAXParseException; lineNumber: 1; columnNumber: 3; The markup in the document preceding the root element must be well-formed.
at org.apache.xerces.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source)
at org.apache.xerces.util.ErrorHandlerWrapper.fatalError(Unknown Source)
at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
at org.apache.xerces.impl.XMLScanner.reportFatalError(Unknown Source)
at org.apache.xerces.impl.XMLDocumentScannerImpl$PrologDispatcher.dispatch(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
at org.apache.xerces.jaxp.SAXParserImpl.parse(Unknown Source)
at com.intellij.ide.plugins.PluginsMetaLoader.parsePluginList(PluginsMetaLoader.kt:131)
... 19 more
2020-11-30 19:10:09,960 [ 752508] INFO - gins.PluginManagerConfigurable -
java.net.MalformedURLException: Malformed URL:
at com.intellij.util.Urls.newFromEncoded(Urls.kt:63)
at com.intellij.ide.plugins.RepositoryHelper.loadPlugins(RepositoryHelper.java:101)
at com.intellij.ide.plugins.RepositoryHelper.loadPlugins(RepositoryHelper.java:86)
at com.intellij.ide.plugins.PluginManagerConfigurable.loadRepositoryPlugins(PluginManagerConfigurable.java:1549)
at com.intellij.ide.plugins.PluginManagerConfigurable.access$2000(PluginManagerConfigurable.java:73)
at com.intellij.ide.plugins.PluginManagerConfigurable$7.lambda$createPluginsPanel$3(PluginManagerConfigurable.java:382)
at com.intellij.util.RunnableCallable.call(RunnableCallable.java:20)
at com.intellij.util.RunnableCallable.call(RunnableCallable.java:11)
at com.intellij.openapi.application.impl.ApplicationImpl$1.call(ApplicationImpl.java:255)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:834)

```

I uploaded the full log at 2020_11_30_URamN9F1iSzyW6Yb

(Upload ID: 2020_11_30_URamN9F1iSzyW6Yb (file: idea.log) )

I installed intellij with ```$ sudo snap install intellij-idea-ultimate --channel=2020.1/stable --classic
intellij-idea-ultimate (2020.1/stable) 2020.1.4 from jetbrains✓ installed```

Mattias Beimers your case is different. The error is "java.net.MalformedURLException: Malformed URL". 

It is being investigated in the scope of https://youtrack.jetbrains.com/issue/IDEA-236602

Feel free to upvote to receive notification regarding that issue. 

Users report the IDE restart helps temporarily.