Language code "sw-CD" not compatible on this system

Question

Hi, 
 Matthias here, a Swahili translator using SDL Trados Studio 2015. 
 Often, but not always, when opening a Trados Package, I receive the error "language code "sw-CD" not compatible on this system" and the file won't open for translation. 
 Is this a problem with my app or is it a file format issue? 
 I will be grateful for your response. 
 Thank you

Paul · Answer

Hi Matthias Kavuttih , 
 
I had a quick test and see that the language code sw-CD is used in both 2015 and 2017 so this should not be a problem. When it happens again can you open the sdlxliff files in the target language folder of the project package with a text editor and look at the language codes being used? You can open the package by adding a .zip to the end and unzipping it to a folder on your desktop. 
 
Do you know what version of Studio is used by the creator of the package, or what operating system they use? 
 
Do you use multiple computers and find this problem happens on only one of them? 
 
Regards 
 
Paul

Paul · Answer

Quite possibly which is why I asked about the OS. The link you gave for Microsoft is outdated though... try this instead: 
 
 msdn.microsoft.com/.../cc233982.aspx 
 
W10 introduced Congo Swahili (not the same as Kiswahili) and we will have ensured that this is available in Studio 2017 to support older operating systems too. The code Microsoft use is swc-CD but we seem to have abbreviated it to sw-CD. I don't know any more than that. But certainly I have no problem with this code in W8.1 for Studio 2015 or 2017.

Paul · Answer

Unknown said: Actually I gave TWO links, one of them being the one you posted ;-) 
 So you did... sorry. That one does indeed provide more information but it's only valid up to W7 and as you clearly know there has been a lot more languages added since that version. 
 Unknown said: Now, since the weird "sw-CD" code for "Swahili (Congo - Kinshasa)" language is used since at least Studio 2011 (and most probably also in Studio 2009, but I don't have it installed), it really strongly doubt that it has anything to do with "abbreviation of swc-CD". It seems to be rather related to some "home-brewed" code back in the times of missing codes for "Latin American Spanish" and the likes... 
 I'm only guessing, but I will ask the question since it seems to have attracted this much attention from you. I'm sticking with my guess though as 2011 used that code for "Swahili (Congo - Kinshasa)" as you pointed out, probably because it was missing from the Microsoft language support, and now that we had a need for more African languages from the Democratic Republic of Congo (country code CD) we stuck with the abbreviation we used then for Swahili (sw) and added support for the others (French, Lingala, Luba-Catanga) that all have two digit language codes. So Swahili was the only one that was different in that they used swc - so probably we were unlucky with the guess. 
 Apologies to the OP too... hopefully he'll still come back to discuss his original problem!

Paul · Answer

Hi Evzen, 
 I didn't say they were specific, only referred to what MS use. You might also find this document useful as it's far more relevant then the other links we discussed. You can download a PDF , latest version March 2017, from here too. 
 https://msdn.microsoft.com/en-us/library/cc233965.aspx 
 Regards 
 Paul

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Language code "sw-CD" not compatible on this system