Project settings in Editor not accessible after updating Trados Studio 2021 to newest version

Question

After updating Trados Studio 2021 to the newest version, I cannot access the project settings in the Editor anymore. I originally wanted to add an API key for an MT provider there. When clicking on the project settings button, I now receive the message "Exception has been thrown by the target of an invocation". I have tried various suggestions in the community but still get that error message. Could I get some help here?

Removed AI Suggestion
[edited by: Susanne Kraetschmer at 7:26 PM (GMT 0) on 9 Mar 2026]

RWS Community AI · Accepted Answer

Probability score: 0.6 
 Question improvement suggestion: Please provide the exact version of Trados Studio you are using and any specific troubleshooting steps you have already attempted. This will help in diagnosing the issue more effectively. 
 In the meantime, based on the information you have provided, here is a suggested answer to your question: 
 Hello, 
 It seems you're encountering an issue with accessing project settings in Trados Studio after an update, which is resulting in the error message "Exception has been thrown by the target of an invocation." Here are some steps you can take to troubleshoot and potentially resolve this issue: 
 **Step 1:** Verify the Version 
 Make sure you are using the latest version of Trados Studio. You can check this by going to Help > About Trados Studio. Ensure that your version is compatible with the World Server Compatibility Pack you have installed. 
 **Step 2:** Check Project Selection 
 Ensure that you have an active project selected in the Projects view. The Project Settings button will only be active if a project is selected. 
 **Step 3:** Remove and Reinstall World Server Components 
 1. Close Trados Studio. 
 2. Go to Control Panel > Programs & Features and uninstall the World Server Components. 
 3. Restart your computer if prompted. 
 4. Reinstall the correct version of the World Server Compatibility Pack from the RWS AppStore that matches your version of Trados Studio. 
 **Step 4:** Reset User Settings 
 1. Close Trados Studio. 
 2. Navigate to `C:\Users\%USERNAME%\AppData\Roaming\Trados\Trados Studio\Studio17` and rename the `UserSettings.xml` file to `old_UserSettings.xml`. 
 3. Restart Trados Studio and check if the issue persists. 
 **Step 5:** Clear Temporary Files 
 1. Close Trados Studio. 
 2. Press Windows + R, type `%temp%`, and delete all files and folders in the Temp directory. 
 3. Restart Trados Studio. 
 **Step 6:** Check for Conflicting Settings 
 If you have multiple Translation Memories or Automated Translation providers, try removing them temporarily to see if that resolves the issue. You can do this by right-clicking on the project, selecting Project Settings, and navigating to Language Pairs > All Language Pairs > Translation Memory and Automated Translation. 
 If these steps do not resolve the issue, please provide additional details about your Trados Studio version and any other troubleshooting steps you've attempted. This will help in further diagnosing the problem. 
 I hope this answer addressed your question. If not, please reject the answer, add the question improvement suggestion information, and click the RWS Community AI checkbox on the right to try again. 
 RWS Community AI

Anca Stoian · Answer

Hi Susanne Kraetschmer 
 Did you solve the error? The solution is step 3 suggested by the AI and is also described in the KB article below: 
 https://gateway.rws.com/csm?sys_kb_id=accc22201b0f9a50772c0dcad34bcb05&id=kb_article_view&sysparm_rank=7&sysparm_tsqueryId=408ee3593be3325893afd79704e45aa3 
 Best regards, 
 Anca

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Project settings in Editor not accessible after updating Trados Studio 2021 to newest version