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DDU not running. Launching main window failed error

Posted: Sun Feb 24, 2019 3:54 pm
by gamertwo1
Tried multiple times re downloaded installer. but still getting same error. It was running last month but now giving this error

Re: DDU not running. Launching main window failed error

Posted: Mon Feb 25, 2019 8:06 am
by Wagnard
gamertwo1 wrote: Sun Feb 24, 2019 3:54 pm Tried multiple times re downloaded installer. but still getting same error. It was running last month but now giving this error
This seems to be an error with you .net on your computer.
As you said, it was running before... so probably on you end

Re: DDU not running. Launching main window failed error

Posted: Mon Feb 25, 2019 11:59 am
by gamertwo1
Wagnard wrote: Mon Feb 25, 2019 8:06 am
gamertwo1 wrote: Sun Feb 24, 2019 3:54 pm Tried multiple times re downloaded installer. but still getting same error. It was running last month but now giving this error
This seems to be an error with you .net on your computer.
As you said, it was running before... so probably on you end
What should I do to resolve this error. Help needed

Re: DDU not running. Launching main window failed error

Posted: Mon Feb 25, 2019 12:50 pm
by Wagnard
gamertwo1 wrote: Mon Feb 25, 2019 11:59 am
Wagnard wrote: Mon Feb 25, 2019 8:06 am
gamertwo1 wrote: Sun Feb 24, 2019 3:54 pm Tried multiple times re downloaded installer. but still getting same error. It was running last month but now giving this error
This seems to be an error with you .net on your computer.
As you said, it was running before... so probably on you end
What should I do to resolve this error. Help needed
Can you verify that the file `PresentationFramework-SystemXml.dll` does exist under `C:\Windows\Microsoft.NET\Framework64\v4.0.30319\WPF`?
Because you are the first to report this error, it seems logical that the problem is specific to your installation. Could you try to run this[.NET Framework Repair tool]( http://www.microsoft.com/en-us/download ... x?id=30135 )?

Re: DDU not running. Launching main window failed error

Posted: Mon Feb 25, 2019 5:30 pm
by gamertwo1
Wagnard wrote: Mon Feb 25, 2019 12:50 pm
gamertwo1 wrote: Mon Feb 25, 2019 11:59 am
Wagnard wrote: Mon Feb 25, 2019 8:06 am

This seems to be an error with you .net on your computer.
As you said, it was running before... so probably on you end
What should I do to resolve this error. Help needed
Can you verify that the file `PresentationFramework-SystemXml.dll` does exist under `C:\Windows\Microsoft.NET\Framework64\v4.0.30319\WPF`?
Because you are the first to report this error, it seems logical that the problem is specific to your installation. Could you try to run this[.NET Framework Repair tool]( http://www.microsoft.com/en-us/download ... x?id=30135 )?
File does exist. And I've tried running repair tool but nothing happens

Re: DDU not running. Launching main window failed error

Posted: Mon Feb 25, 2019 5:32 pm
by Wagnard
What is your OS? 32 / 64? . Net version you have

Re: DDU not running. Launching main window failed error

Posted: Mon Feb 25, 2019 5:44 pm
by gamertwo1
Wagnard wrote: Mon Feb 25, 2019 5:32 pm What is your OS? 32 / 64? . Net version you have
Windows 10 x64 enterprise and .net ver is 4.7.2

Re: DDU not running. Launching main window failed error

Posted: Tue Feb 26, 2019 10:52 am
by Wagnard
gamertwo1 wrote: Mon Feb 25, 2019 5:44 pm
Wagnard wrote: Mon Feb 25, 2019 5:32 pm What is your OS? 32 / 64? . Net version you have
Windows 10 x64 enterprise and .net ver is 4.7.2
I have no idea why it doesn't work for you, Since you have enterprise, maybe you are on a domain controler and you have some special GPO (Group policy) denying it to launch

Re: DDU not running. Launching main window failed error

Posted: Wed Feb 27, 2019 9:44 am
by gamertwo1
Wagnard wrote: Tue Feb 26, 2019 10:52 am I have no idea why it doesn't work for you, Since you have enterprise, maybe you are on a domain controler and you have some special GPO (Group policy) denying it to launch
No. I installed it myself and I'm the only administrator. I also tried reinstalling framework but that didn't solve problem

Re: DDU not running. Launching main window failed error

Posted: Wed Feb 27, 2019 9:49 am
by Wagnard
Sadly, I can't help much.
The error is quite clear on your screenshot: .NET can't find the file PresentationFramework-SystemXml.dll This is a core file of the .NET FrameWork.

Do you have some .net files here : C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5\System.Xaml.dll

Have you changed the c:\ to another name?