You are currently working on UAT 

Unable to launch SDL Trados 2019 Freelance, Exception has been thrown by the target of an invocation, mscorlib

SDL Trados 2019 has been working great since July. All of a sudden it won't launch showing the above message. 

Here's what I tried already:

1) Repair (using MS Add/Remove programs). 

2) Removing Plugins in C:\Users\[User]\AppData\Roaming\SDL\SDL Trados Studio\15\Plugins\Packages

and in  C:\Users\[User]\AppData\Roaming\SDL\SDL Trados Studio\15\Plugins\Unpacked

3) Uninstalling/Reinstalling from Windows Add/Remove utility

4) The same as the above, but from SDL FreshStart App. 

5) Running the [SDL Studio] packages from the packagecache folder.

6) Repeating the above.. !!

 I don't have support, but I am hoping someone here would be able to help me (urgently). 

 

Here's the stack:

 

<ErrorMessage>Exception has been thrown by the target of an invocation.</ErrorMessage>
<Exception>
<Type>System.Reflection.TargetInvocationException, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</Type>
<Source>mscorlib</Source>
<HResult>-2146232828</HResult>
<StackTrace><![CDATA[

at System.RuntimeMethodHandle.SerializationInvoke(IRuntimeMethodInfo method, Object target, SerializationInfo info, StreamingContext& context)

at System.Runtime.Serialization.ObjectManager.CompleteISerializableObject(Object obj, SerializationInfo info, StreamingContext context)

at System.Runtime.Serialization.ObjectManager.FixupSpecialObject(ObjectHolder holder)
at System.Runtime.Serialization.ObjectManager.DoFixups()
at System.Runtime.Serialization.Formatters.Binary.ObjectReader.Deserialize(HeaderHandler handler, __BinaryParser serParser, Boolean fCheck, Boolean isCrossAppDomain, IMethodCallMessage methodCallMessage)

at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize(Stream serializationStream, HeaderHandler handler, Boolean fCheck, Boolean isCrossAppDomain, IMethodCallMessage methodCallMessage)

at System.Resources.ResourceReader.DeserializeObject(Int32 typeIndex)
at System.Resources.ResourceReader._LoadObjectV2(Int32 pos, ResourceTypeCode& typeCode)
at System.Resources.ResourceReader.LoadObjectV2(Int32 pos, ResourceTypeCode& typeCode)
at System.Resources.ResourceReader.LoadObject(Int32 pos, ResourceTypeCode& typeCode)
at System.Resources.RuntimeResourceSet.GetObject(String key, Boolean ignoreCase, Boolean isString)
at System.Resources.RuntimeResourceSet.GetObject(String key, Boolean ignoreCase)
at System.Resources.ResourceManager.GetObject(String name, CultureInfo culture, Boolean wrapUnmanagedMemStream)

at System.Resources.ResourceManager.GetObject(String name, CultureInfo culture)
at Sdl.TranslationStudio.Common.ImageResources.get_current_user()
at Sdl.TranslationStudio.Common.SetupWizard.Wizard.AddWizardPages()
at Sdl.Desktop.Platform.Wizard.AbstractWizard`1.InitializeWizardPages()
at Sdl.Desktop.Platform.Wizard.AbstractWizard`1.get_HasAvailablePages()
at Sdl.TranslationStudio.Common.SetupWizard.SetupWizardLauncher.Execute()
at Sdl.Desktop.Platform.Implementation.Studio.ExecuteStartupExtensions()
at Sdl.Desktop.Platform.Implementation.Studio.Run()
at Sdl.TranslationStudio.Application.ApplicationStartup.RunApplication()
at Sdl.TranslationStudio.Application.Launcher.RunApplication()]]></StackTrace>
<InnerException>
<Type>System.ComponentModel.Win32Exception, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</Type>
<NativeErrorCode>0</NativeErrorCode>
<ErrorCode>-2147467259</ErrorCode>
<HelpLink />

<Source>System.Drawing</Source>
<HResult>-2147467259</HResult>
<StackTrace><![CDATA[ at System.Drawing.Icon.Initialize(Int32 width, Int32 height)
at System.Drawing.Icon..ctor(SerializationInfo info, StreamingContext context)]]></StackTrace>
</InnerException>
</Exception>
<Environment>
<ProductName>SDL Trados Studio</ProductName>
<ProductVersion>15.0.0.0</ProductVersion>
<EntryAssemblyFileVersion>15.0.0.29074</EntryAssemblyFileVersion>
<OperatingSystem>Microsoft Windows 8.1 Pro</OperatingSystem>
<ServicePack>NULL</ServicePack>
<OperatingSystemLanguage>1033</OperatingSystemLanguage>
<CodePage>1256</CodePage>
<DotNetFrameWork>4.0.30319.42000</DotNetFrameWork>
<ConnectedToNetwork>True</ConnectedToNetwork>
<PhysicalMemory>8293548 MB</PhysicalMemory>
</Environment>
</SDLErrorDetails>