Rider 2023.3 immediately crashes when open a specific solution

Problem

When opening a specific solution with Rider, it immediately crashes. The logs indicate that there is a bad path stored somewhere in the solution.

Removing NuGet.config or clearing caches does not solve this issue.

024-02-22 10:17:42,654 [  12593] SEVERE - Projected Logger - IdeaLoggingEvent[message=The path is not a valid file system path because it is not absolute, and only an absolute path can be resolved into an actual file system object.

--- EXCEPTION #1/2 [InvalidOperationException]
Message = “The path is not a valid file system path because it is not absolute, and only an absolute path can be resolved into an actual file system object.”
ExceptionPath = Root.InnerException
ClassName = System.InvalidOperationException
HResult = COR_E_INVALIDOPERATION=80131509

--- Outer ---

--- EXCEPTION #2/2 [LoggerException]
Message = “The path is not a valid file system path because it is not absolute, and only an absolute path can be resolved into an actual file system object.”
ExceptionPath = Root
ClassName = JetBrains.Util.LoggerException
InnerException = “Exception #1 at Root.InnerException”
HResult = COR_E_APPLICATION=80131600
StackTraceString = “
  at JetBrains.Util.ILoggerEx.LogException(ILogger this, LoggingLevel level, Exception exception, ExceptionOrigin exceptionOrigin, String comment) in LogException.il:line IL_002E mvid 9968
     at JetBrains.Util.ILoggerEx.Error(ILogger this, Exception exception, ExceptionOrigin origin, String comment) in Error.il:line IL_0000 mvid 9968
     at JetBrains.Util.FileSystemPathBase`3.LogAssertIsAbsolute() in LogAssertIsAbsolute.il:line IL_0015 mvid 9968
     at JetBrains.Util.LocalVirtualFileSystemInteraction.GetExists(VirtualFileSystemPath path) in GetExists.il:line IL_0000 mvid 9968
     at JetBrains.Util.FileSystemPathBase`3.get_Exists()
     at JetBrains.Util.FileSystemPathBase`3.get_ExistsDirectory()
     at JetBrains.ProjectModel.NuGet.Configs.NuGetPackageSourceValidator.ValidateExistingPackageSource(String name, String source, Boolean isLocal) in ValidateExistingPackageSource.il:line IL_00C9 mvid 932F
     at JetBrains.ProjectModel.NuGet.Configs.Validation.NuGetSettingsValidator.ValidateSource(String name, String source, Boolean isLocal) in ValidateSource.il:line IL_0000 mvid 932F
     at JetBrains.ProjectModel.NuGet.Configs.Validation.NuGetValidationManager.<.ctor>b__7_0(NuGetFeedInfo feed) in NuGetValidationManager.il:line IL_0015 mvid 932F
     at JetBrains.Application.Threading.AsyncProcessing.AsyncItemsProcessor`1.ProcessItemsInternal() in ProcessItemsInternal.il:line IL_0082 mvid 5434
     at JetBrains.Lifetimes.LifetimeDefinition.TryExecute(Action action, Boolean wrapExceptions) in TryExecute.il:line IL_0025 mvid CC54
     at JetBrains.Lifetimes.Lifetime.TryExecute(Action action, Boolean wrapExceptions) in TryExecute.il:line IL_0000 mvid CC54
     at JetBrains.Application.Threading.AsyncProcessing.AsyncItemsProcessor`1.ProcessItems() in ProcessItems.il:line IL_0047 mvid 5434
     at JetBrains.Util.Logging.Logger.Catch(Action action) in Catch.il:line IL_000F mvid 9968
     at JetBrains.Application.Threading.AsyncProcessing.FreeThreadedGrouppingEventScheduler.<.ctor>b__11_0(Boolean b) in FreeThreadedGrouppingEventScheduler.il:line IL_008F mvid 5434
     at JetBrains.DataFlow.Signal`1.Fire(TValue value, Object cookie) in Fire.il:line IL_0054 mvid 9968
     at JetBrains.DataFlow.SimpleSignal.Fire() in Fire.il:line IL_0000 mvid 9968
     at JetBrains.Util.ILoggerEx.Catch(ILogger thіs, Action F, ExceptionOrigin origin, LoggingLevel loggingLevel) in Catch.il:line IL_0000 mvid 9968 or Catch.il:line IL_0060 mvid 9968
     at JetBrains.Util.ILoggerEx.Catch(ILogger thіs, Action F, ExceptionOrigin origin) in Catch.il:line IL_0000 mvid 9968 or Catch.il:line IL_0060 mvid 9968
     at JetBrains.Application.Threading.Tasks.FreeThreadedGroupingEvent.CallOutgoingFire() in CallOutgoingFire.il:line IL_00BD mvid 9968
     at JetBrains.Application.Threading.Tasks.FreeThreadedGroupingEvent.<FireInternal>g__FireOutgoingInternal|15_0() in FreeThreadedGroupingEvent.il:line IL_0000 mvid 9968
     at JetBrains.Application.Threading.Tasks.FreeThreadedGroupingEvent.FireInternal() in FireInternal.il:line IL_0008 mvid 9968
     at JetBrains.Application.Threading.Tasks.FreeThreadedGroupingEvent.ScheduledFireAction() in ScheduledFireAction.il:line IL_00A6 mvid 9968
     at JetBrains.Application.Threading.Tasks.FreeThreadedGroupingEvent.<>c__DisplayClass21_0.<<QueueAt>g__QueueAtAsync|0>d.MoveNext() in QueueAt.il:line IL_0137 mvid 9968
     at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.AsyncStateMachineBox`1.ExecutionContextCallback(Object s) in ExecutionContextCallback.il:line IL_0000 mvid 0B73
     at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state) in RunInternal.il:line IL_0040 mvid 0B73
     at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.AsyncStateMachineBox`1.MoveNext(Thread threadPoolThread) in MoveNext.il:line IL_0000 mvid 0B73 or MoveNext.il:line IL_003F mvid 0B73
     at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.AsyncStateMachineBox`1.MoveNext() in MoveNext.il:line IL_0000 mvid 0B73 or MoveNext.il:line IL_003F mvid 0B73
     at JetBrains.Util.Concurrency.Threading.Tasks.SchedulerAwaiter.<>c__DisplayClass11_0.<OnCompleted>b__0(Object _) in SchedulerAwaiter.il:line IL_0000 mvid 9968
     at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state) in RunInternal.il:line IL_0040 mvid 0B73
     at System.Threading.Tasks.Task.ExecuteWithThreadLocal(Task& currentTaskSlot, Thread threadPoolThread) in ExecuteWithThreadLocal.il:line IL_0096 mvid 0B73
     at System.Threading.Tasks.Task.ExecuteEntry() in ExecuteEntry.il:line IL_0036 mvid 0B73
     at JetBrains.Application.Threading.Tasks.Scheduler.JetScheduler.ExecuteTask(Task task) in ExecuteTask.il:line IL_0014 mvid 9968
     at JetBrains.Application.Threading.Tasks.Scheduler.JetSchedulerThread.EnqueueNextTask() in EnqueueNextTask.il:line IL_0015 mvid 9968
     at JetBrains.Application.Threading.Tasks.Scheduler.JetSchedulerThread.ThreadPoolProc() in ThreadPoolProc.il:line IL_0197 mvid 9968
     at JetBrains.Application.Threading.Tasks.Scheduler.JetSchedulerThread.StartProc() in StartProc.il:line IL_0000 mvid 9968
”
, throwable=com.jetbrains.rd.platform.diagnostics.BackendException: The path is not a valid file system path because it is not absolute, and only an absolute path can be resolved into an actual file system object.

Environment

Rider 2023.3

OS: Linux (6.5.0-18-generic)

Cause

Rider was installed via Flatpak

One possible reason is the issue in Flatpak.

Resolution

Delete the current version of Rider and install it using, for example, snap