Cannot run Rider extension

[dehlong]

Environments

• IDE Version: Rider 2025.1
• Extension Version: 2.1.2
• CSharpier Version: 1.0.2 will NOT be the same as the extension version
• Operating System: Arch Linux
• .csharpierrc Settings: None
• .editorconfig Settings: None

Log Output

2025-06-14 09:29:35,574 [ 252162] SEVERE - #c.i.c.CSharpierLogger - Process failed to start with java.io.UncheckedIOException: java.io.IOException: Stream closed
java.lang.Throwable: Process failed to start with java.io.UncheckedIOException: java.io.IOException: Stream closed
	at com.intellij.openapi.diagnostic.Logger.error(Logger.java:375)
	at com.intellij.csharpier.CSharpierProcessServer.lambda$startProcess$2(CSharpierProcessServer.java:88)
	at java.base/java.util.concurrent.CompletableFuture$UniAccept.tryFire(CompletableFuture.java:718)
	at java.base/java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:510)
	at java.base/java.util.concurrent.CompletableFuture.postFire(CompletableFuture.java:614)
	at java.base/java.util.concurrent.CompletableFuture$UniHandle.tryFire(CompletableFuture.java:914)
	at java.base/java.util.concurrent.CompletableFuture$Completion.exec(CompletableFuture.java:483)
	at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:507)
	at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1491)
	at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:2073)
	at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:2035)
	at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:187)

Steps to reproduce Install the extension to rider. And have it installed globally via dotnet too.

Expected behavior Formats files.

Actual behavior Returns this error.

[belav]

The exception doesn't tell me much, but there is a file at a location similar to this which may contain more info.

/home/[User]/.cache/csharpier/1.0.2/.store/csharpier/1.0.2/csharpier/1.0.2/tools/net9.0/any/server.log

Otherwise the option for disable csharpier server will use the older style of communication with csharpier which has worked for some users.

[github-actions[bot]]

This issue is stale because it has been open 180 days with no activity and was not assigned a label or milestone. Leave a comment if this still needs to be addressed or this will be closed in 7 days.