System.NotSupportedException: Specified method is not supported.

EM Client keeps crashing

Here is the log file. I have an Exchange e-mail account and 2 Gmail accounts configured. What does this error mean???

eM Client (6.0.21040.0)Windows: Microsoft Windows NT 6.1.7601 Service Pack 1, Framework: 4.0.30319.18444
The following error has occurred:
System.NotSupportedException: Specified method is not supported.
   at MailClient.Storage.Application.Folder.get_MailItems()
   at MailClient.Protocols.Common.ItemSynchronizer`2.<>c__DisplayClass30.<>c__DisplayClass35.b__2c(WorkerStatus status, CancellationToken cancellationToken)
at MailClient.Protocols.Exchange.ExchangeGenericCommand.Execute(WorkerStatus status)
at MailClient.Commands.Command.Process(WorkerStatus status)
at MailClient.Commands.SynchronizationQueue.ThreadWorker(Object threadData)
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart(Object obj)

Hi,
can you please try to download this update and run the installer: http://www.emclient.com/dist/v6.0.21151/setup.msi , and check if the issue persists.
If it does, please copy the whole error from the crash report window and post it here on the forum.

Thank you,
Paul.

Done and still crashing. Here is the error. 

eM Client (6.0.21151.0)Windows: Microsoft Windows NT 6.1.7601 Service Pack 1, Framework: 4.0.30319.18444
The following error has occurred:
System.NotSupportedException: Specified method is not supported.
   at MailClient.Storage.Application.Folder.get_MailItems()
   at MailClient.Protocols.Common.ItemSynchronizer2.\<\>c\_\_DisplayClass30.\<\>c\_\_DisplayClass35.<enqueuesynchronize>b__2c(WorkerStatus status, CancellationToken cancellationToken)<br> at MailClient.Protocols.Exchange.ExchangeGenericCommand.Execute(WorkerStatus status)<br> at MailClient.Commands.Command.Process(WorkerStatus status)<br> at MailClient.Commands.SynchronizationQueue.ThreadWorker(Object threadData)<br> at System.Threading.ThreadHelper.ThreadStart_Context(Object state)<br> at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)<br> at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)<br> at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)<br> at System.Threading.ThreadHelper.ThreadStart(Object obj)<br><br><br><report xmlns="&lt;a href=" http:>" rel="nofollow" target="_blank"&gt;http://emclient.com/ns/report"&gt;;<br> <product><br> <name>eM Client</name><br> <version>6.0.21151.0</version><br> </product><br> <silent>false</silent><br> <environment><br> <osversion>Microsoft Windows NT 6.1.7601 Service Pack 1</osversion><br> <frameworkversion>4.0.30319.18444</frameworkversion><br> </environment><br> <exception><br> <type>System.NotSupportedException</type><br> <message>Specified method is not supported.</message><br> <source>MailClient</source><br> <stack><br> <frame> <br> <method><br> <modulename>MailClient.exe</modulename><br> <metadatatoken>100677182</metadatatoken><br> <assembly>MailClient</assembly><br> <type>MailClient.Storage.Application.Folder</type><br> <name>get_MailItems</name><br> <parameters></parameters><br> </method><br> <offset>f</offset><br> <nativeoffset>aa6c06</nativeoffset><br> <br> <frame> <br> <method><br> <modulename>MailClient.exe</modulename><br> <metadatatoken>100697454</metadatatoken><br> <assembly>MailClient</assembly><br> <type>MailClient.Protocols.Common.ItemSynchronizer2+<>c DisplayClass30+<>c DisplayClass35
<EnqueueSynchronize>b__2c


MailClient
MailClient.Commands.WorkerStatus
status


MailClient
System.Threading.CancellationToken
cancellationToken



1b1
3d0




MailClient.exe
100667861
MailClient
MailClient.Protocols.Exchange.ExchangeGenericCommand
Execute


MailClient
MailClient.Commands.WorkerStatus
status



96
17b




MailClient.exe
100664007
MailClient
MailClient.Commands.Command
Process


MailClient
MailClient.Commands.WorkerStatus
status



15
53




MailClient.exe
100664057
MailClient
MailClient.Commands.SynchronizationQueue
ThreadWorker


mscorlib
System.Object
threadData



8c
11c




mscorlib.dll
100669199
mscorlib
System.Threading.ThreadHelper
ThreadStart_Context


mscorlib
System.Object
state



25
9b




mscorlib.dll
100668967
mscorlib
System.Threading.ExecutionContext
RunInternal


mscorlib
System.Threading.ExecutionContext
executionContext


mscorlib
System.Threading.ContextCallback
callback


mscorlib
System.Object
state


mscorlib
System.Boolean
preserveSyncCtx



70
a6




mscorlib.dll
100668966
mscorlib
System.Threading.ExecutionContext
Run


mscorlib
System.Threading.ExecutionContext
executionContext


mscorlib
System.Threading.ContextCallback
callback


mscorlib
System.Object
state


mscorlib
System.Boolean
preserveSyncCtx



0
15




mscorlib.dll
100668965
mscorlib
System.Threading.ExecutionContext
Run


mscorlib
System.Threading.ExecutionContext
executionContext


mscorlib
System.Threading.ContextCallback
callback


mscorlib
System.Object
state



2b
40




mscorlib.dll
100669196
mscorlib
System.Threading.ThreadHelper
ThreadStart


mscorlib
System.Object
obj



f
4d






MailClient.exe
C:\Program Files (x86)\eM Client\MailClient.exe
MailClient.exe
MailClient.exe
6.0.21151.0
eM Client
eM Client
6.0.21151.0
False
False
False
False
False
Language Neutral


ntdll.dll
C:\Windows\SysWOW64\ntdll.dll
ntdll.dll
ntdll.dll.mui
6.1.7600.16385 (win7_rtm.090713-1255)
NT Layer DLL
Microsoft® Windows® Operating System
6.1.7600.16385
False
False
False
False
False
English (United States)


MSCOREE.DLL
C:\Windows\SYSTEM32\MSCOREE.DLL
mscoree.dll
mscoree.dll
4.0.40305.0 (Main.040305-0000)
Microsoft .NET Runtime Execution Engine
Microsoft® .NET Framework
4.0.40305.0
False
False
False
True
False
English (United States)


KERNEL32.dll
C:\Windows\syswow64\KERNEL32.dll
kernel32
kernel32
6.1.7601.18015 (win7sp1_gdr.121129-1432)
Windows NT BASE API Client DLL
Microsoft® Windows® Operating System
6.1.7601.18015
False
False
False
False
False
English (United States)


KERNELBASE.dll
C:\Windows\syswow64\KERNELBASE.dll
Kernelbase
Kernelbase
6.1.7601.18015 (win7sp1_gdr.121129-1432)
Windows NT BASE API Client DLL
Microsoft® Windows® Operating System
6.1.7601.18015
False
False
False
False
False
English (United States)


ADVAPI32.dll
C:\Windows\syswow64\ADVAPI32.dll
advapi32.dll
advapi32.dll.mui
6.1.7600.16385 (win7_rtm.090713-1255)
Advanced Windows 32 Base API
Microsoft® Windows® Operating System
6.1.7600.16385
False
False
False
False
False
English (United States)


msvcrt.dll
C:\Windows\syswow64\msvcrt.dll
msvcrt.dll
msvcrt.dll
7.0.7601.17744 (win7sp1_gdr.111215-1535)
Windows NT CRT DLL
Microsoft® Windows® Operating System
7.0.7601.17744
False
False
False
False
False
English (United States)


sechost.dll
C:\Windows\SysWOW64\sechost.dll
sechost.dll
sechost.dll.mui
6.1.7600.16385 (win7_rtm.090713-1255)
Host for SCM/SDDL/LSA Lookup APIs
Microsoft® Windows® Operating System
6.1.7600.16385
False
False
False
False
False
English (United States)


RPCRT4.dll
C:\Windows\syswow64\RPCRT4.dll
rpcrt4.dll
rpcrt4.dll.mui
6.1.7600.16385 (win7_rtm.090713-1255)
Remote Procedure Call Runtime
Microsoft® Windows® Operating System
6.1.7600.16385
False
False
False
False
False
English (United States)


SspiCli.dll
C:\Windows\syswow64\SspiCli.dll
security.dll
security.dll
6.1.7601.18526 (win7sp1_gdr.140706-1506)
Security Support Provider Interface
Microsoft® Windows® Operating System
6.1.7601.18526
False
False
False
False
False
English (United States)


CRYPTBASE.dll
C:\Windows\syswow64\CRYPTBASE.dll
cryptbase.dll
cryptbase.dll
6.1.7600.16385 (win7_rtm.090713-1255)
Base cryptographic API DLL
Microsoft® Windows® Operating System
6.1.7600.16385
False
False
False
False
False
English (United States)


mscoreei.dll
C:\Windows\Microsoft.NET\Framework\v4.0.30319\mscoreei.dll
mscoreei.dll
mscoreei.dll
4.0.30319.18408 built by: FX451RTMGREL
Microsoft .NET Runtime Execution Engine
Microsoft® .NET Framework
4.0.30319.18408
False
False
False
True
False
English (United States)


SHLWAPI.dll
C:\Windows\syswow64\SHLWAPI.dll
SHLWAPI
SHLWAPI.DLL.MUI
6.1.7600.16385 (win7_rtm.090713-1255)
Shell Light-weight Utility Library
Microsoft® Windows® Operating System
6.1.7600.16385
False
False
False
False
False
English (United States)


GDI32.dll
C:\Windows\syswow64\GDI32.dll
gdi32
gdi32
6.1.7601.18577 (win7sp1_gdr.140822-1508)
GDI Client DLL
Microsoft® Windows® Operating System
6.1.7601.18577
False
False
False
False
False
English (United States)


USER32.dll
C:\Windows\syswow64\USER32.dll
user32
user32
6.1.7601.17514 (win7sp1_rtm.101119-1850)
Multi-User Windows USER API Client DLL
Microsoft® Windows® Operating System
6.1.7601.17514
False
False
False
False
False
English (United States)


LPK.dll
C:\Windows\syswow64\LPK.dll
LanguagePack
LanguagePack
6.1.7601.18177 (win7sp1_gdr.130605-1534)
Language Pack
Microsoft® Windows® Operating System
6.1.7601.18177
False
False
False
False
False
English (United States)


USP10.dll
C:\Windows\syswow64\USP10.dll
Uniscribe
Uniscribe
1.0626.7601.18454 (win7sp1_gdr.140424-1533)
Uniscribe Unicode script processor
Microsoft® Uniscribe Unicode script processor
1.0626.7601.18454
False
False
False
False
False
English (United States)


IMM32.DLL
C:\Windows\system32\IMM32.DLL
imm32
imm32
6.1.7601.17514 (win7sp1_rtm.101119-1850)
Multi-User Windows IMM32 API Client DLL
Microsoft® Windows® Operating System
6.1.7601.17514
False
False
False
False
False
English (United States)


MSCTF.dll
C:\Windows\syswow64\MSCTF.dll
MSCTF
MSCTF.DLL.MUI
6.1.7600.16385 (win7_rtm.090713-1255)
MSCTF Server DLL
Microsoft® Windows® Operating System
6.1.7600.16385
False
False
False
False
False
English (United States)


clr.dll
C:\Windows\Microsoft.NET\Framework\v4.0.30319\clr.dll
clr.dll
clr.dll
4.0.30319.18444 built by: FX451RTMGDR
Microsoft .NET Runtime Common Language Runtime - WorkStation
Microsoft® .NET Framework
4.0.30319.18444
False
False
False
True
False
English (United States)


MSVCR110_CLR0400.dll
C:\Windows\system32\MSVCR110_CLR0400.dll
msvcr110_clr0400.dll
msvcr110_clr0400.dll
11.00.50938.18408 built by: FX451RTMGREL
Microsoft® C Runtime Library
Microsoft® Visual Studio® 11 Beta
11.00.50938.18408
False
False
False
False
False
English (United States)


mscorlib.ni.dll
C:\Windows\assembly\NativeImages_v4.0.30319_32\mscorlib\ce5f61c5754789df97be8dc991c47d07\mscorlib.ni.dll
mscorlib.dll
mscorlib.dll
4.0.30319.18444 built by: FX451RTMGDR
Microsoft Common Language Runtime Class Library
Microsoft® .NET Framework
4.0.30319.18444
False
False
False
True
False
English (United States)


ole32.dll
C:\Windows\syswow64\ole32.dll
OLE32.DLL
OLE32.DLL.MUI
6.1.7600.16385 (win7_rtm.090713-1255)
Microsoft OLE for Windows
Microsoft® Windows® Operating System
6.1.7600.16385
False
False
False
False
False
English (United States)


uxtheme.dll
C:\Windows\system32\uxtheme.dll
UxTheme.dll
UxTheme.dll.mui
6.1.7600.16385 (win7_rtm.090713-1255)
Microsoft UxTheme Library
Microsoft® Windows® Operating System
6.1.7600.16385
False
False
False
False
False
English (United States)


System.ni.dll
C:\Windows\assembly\NativeImages_v4.0.30319_32\System\17a393b77ae757f0768501fb95ff5af6\System.ni.dll
System.dll
System.dll
4.0.30319.34238 built by: FX452RTMGDR
.NET Framework
Microsoft® .NET Framework
4.0.30319.34238
False
False
False
True
False
English (United States)


CRYPTSP.dll
C:\Windows\system32\CRYPTSP.dll
cryptsp.dll
cryptsp.dll
6.1.7600.16385 (win7_rtm.090713-1255)
Cryptographic Service Provider API
Microsoft® Windows® Operating System
6.1.7600.16385
False
False
False
False
False
English (United States)


rsaenh.dll
C:\Windows\system32\rsaenh.dll
rsaenh.dll
rsaenh.dll
6.1.7600.16385 (win7_rtm.090713-1255)
Microsoft Enhanced Cryptographic Provider
Microsoft® Windows® Operating System
6.1.7600.16385
False
False
False
False
False
English (United States)


MailClient.Collections.ni.dll
C:\Windows\assembly\NativeImages_v4.0.30319_32\MailClient.1d52ed9e#\00bda4eadf35b24c165128cef4bc420e\MailClient.Collections.ni.dll
MailClient.Collections.dll
MailClient.Collections.dll
6.0.21151.0
MailClient.Collections
MailClient.Collections
6.0.21151.0
False
False
False
False
False
Language Neutral


MailClient.Mail.ni.dll
C:\Windows\assembly\NativeImages_v4.0.30319_32\MailClient.Mail\9a02e787063da387a556051474595f97\MailClient.Mail.ni.dll
MailClient.Mail.dll
MailClient.Mail.dll
6.0.21151.0


6.0.21151.0
False
False
False
False
False
Language Neutral


HTMLEditorControl.ni.dll
C:\Windows\assembly\NativeImages_v4.0.30319_32\HTMLEditorControl\22f1c0751fa4f249ae86ed62cd9286a2\HTMLEditorControl.ni.dll
HTMLEditorControl.dll
HTMLEditorControl.dll
6.0.21151.0
HtmlEditorControl

6.0.21151.0
False
False
False
False
False
Language Neutral


MailClient.ni.exe
C:\Windows\assembly\NativeImages_v4.0.30319_32\MailClient\6c6396ec0e5b3f97a060237d2208bf04\MailClient.ni.exe
MailClient.exe
MailClient.exe
6.0.21151.0
eM Client
eM Client
6.0.21151.0
False
False
False
False
False
Language Neutral


System.Drawing.ni.dll
C:\Windows\assembly\NativeImages_v4.0.30319_32\System.Drawing\b4c08872c259018b17b2801da33ac80f\System.Drawing.ni.dll
System.Drawing.dll
System.Drawing.dll
4.0.30319.18408 built by: FX451RTMGREL
.NET Framework
Microsoft® .NET Framework
4.0.30319.18408
False
False
False
True
False
English (United States)


System.Windows.Forms.ni.dll
C:\Windows\assembly\NativeImages_v4.0.30319_32\System.Windows.Forms\db563d596d76daed04e9b5d25b2f4cb9\System.Windows.Forms.ni.dll
System.Windows.Forms.dll
System.Windows.Forms.dll
4.0.30319.18408 built by: FX451RTMGREL
.NET Framework
Microsoft® .NET Framework
4.0.30319.18408
False
False
False
True
False
English (United States)


MailClient.Common.UI.ni.dll
C:\Windows\assembly\NativeImages_v4.0.30319_32\MailClient.Common.UI\55901a97ee1fc56ba93f256cf2c84e79\MailClient.Common.UI.ni.dll
MailClient.Common.UI.dll
MailClient.Common.UI.dll
6.0.21151.0


6.0.21151.0
False
False
False
False
False
Language Neutral


MailClient.Interop.ni.dll
C:\Windows\assembly\NativeImages_v4.0.30319_32\MailClient.Interop\6191794086706ce1c9a82f28930cb577\MailClient.Interop.ni.dll
MailClient.Interop.dll
MailClient.Interop.dll
6.0.21151.0


6.0.21151.0
False
False
False
False
False
Language Neutral


MailClient.ExceptionUtils.ni.dll
C:\Windows\assembly\NativeImages_v4.0.30319_32\MailClient.ad6c0f7b#\b0abb8ae780fb256f2fe0308d01062d8\MailClient.ExceptionUtils.ni.dll
MailClient.ExceptionUtils.dll
MailClient.ExceptionUtils.dll
1.0.0.0
MailClient.ExceptionUtils
MailClient.ExceptionUtils
1.0.0.0
False
False
False
False
False
Language Neutral


gdiplus.dll
C:\Windows\WinSxS\x86_microsoft.windows.gdiplus_6595b64144ccf1df_1.1.7601.18455_none_72d576ad8665e853\gdiplus.dll
gdiplus
gdiplus
6.1.7601.18455 (win7sp1_gdr.140425-1537)
Microsoft GDI+
Microsoft® Windows® Operating System
6.1.7601.18455
False
False
False
False
False
English (United States)


LinqBridge.ni.dll
C:\Windows\assembly\NativeImages_v4.0.30319_32\LinqBridge\b91126b3cc09ba878acfbbcf3d32be2c\LinqBridge.ni.dll
LinqBridge.dll
LinqBridge.dll
1.3.13216.2214
LINQBridge
LINQBridge
1.3.13216.2214
False
False
False
False
False
Language Neutral


System.Configuration.ni.dll
C:\Windows\assembly\NativeImages_v4.0.30319_32\System.Configuration\0648dbecb7e3fb9523565107e04a5caf\System.Configuration.ni.dll
System.Configuration.dll
System.Configuration.dll

Hi, can you please navigate to your Roaming folder under your local folder > App Data > Roaming, and possibly archive the eM Client directory, without the mail_data, mail_index, mail_fti database files that contain your personal data. Please archive the folder and either send it to my email mcgregor@emclient.com or share the folder over a common sharing service such as Dropbox or Google Drive.

Thank you,
Paul.