"Invalid class" error when trying to open Trados Studio 2014
Thread poster: JasperB
JasperB
Local time: 21:39
English to Dutch
+ ...
Nov 9, 2014

Hi,

Hopefully someone will be able to help me with this.

I had this problem with Trados Studio 2009 and hoped upgrading to 2014 would solve this problem, but apparently it doesn't.

When trying to open Trados Studio 2014 I get the following error: "Invalid class" (see full details below) and Studio just doesn't open.
I have no clue if this is Trados related or something on my laptop, but I don't have this problem with any other program.
I have Windows 8.1 installed on my laptop and haven't installed any programs right before all this started.

Thanks so much for any help!
Jasper


Error details:



-

Invalid class


-

System.Management.ManagementException, System.Management, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a

InvalidClass



System.Management

-2146233087


-








-

SDL Trados Studio

11.0.0.0

11.1.3931.0

[...]

4.0.30319.34014

[...]

True





[...] = my computer name.


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SDL Community  Identity Verified
United Kingdom
Local time: 21:39
English
Possibly a failure to initialise Windows Management Instrumentation (WMI) Nov 17, 2014

Hi Jasper,

If this is still not solved take a look at KB #5304 which might resolve it for you.

Regards

Paul


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Milena Gerboni  Identity Verified
Croatia
Local time: 21:39
German to Italian
+ ...
Same problem with Studio 2011 May 25, 2015

Hi Jasper,
were you able to solve this problem?
I also get the message "Invalid class" when trying to open Studio 2011 on my laptop with Windows 8.1. I tried Paul's suggestion but it didn't work.
Any advice?
Thank you!
Milena


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JasperB
Local time: 21:39
English to Dutch
+ ...
TOPIC STARTER
Windows Repair worked for me May 26, 2015

Hi Milena,

In my case, Paul's suggestion put me on the right track. It is indeed a problem with the WMI.

I used the application Windows Repair (all-in-one) that can be found on the website Tweaking.com to rebuild whatever repositories where apparently necessary to rebuild.
I let the entire program run, but it's probably enough if you only select to rebuild the WMI (the entire process took a little while).

I hope this works for you as well!


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Milena Gerboni  Identity Verified
Croatia
Local time: 21:39
German to Italian
+ ...
Problem solved Jun 14, 2015

Hi Jasper,
it worked! Thank you so much for your help!!
Milena


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