Error message in Trados Studio when trying to create the target file:

Failed to save target: Source file not found

A. Remove the .sdlxliff file or project from Trados Studio and add it again from a different location. When the Dependency file not found error occurs, browse for the source file. Afterwards, try to generate the target.

B. You need to recreate the translation project:

1. Create a Translation Memory (TM) from your sdlxliff file: How to create a Translation Memory
2. Import the data from the sdlxliff: How to import an .sdlxliff file into a Translation Memory 
   If not all the strings are yet confirmed, please make sure you have the draft selected as well at this step.
3. Open the source file with Translate Single File and add the newly-created TM
4. Apply Pre-Translate or PerfectMatch (if you're working on the Professional version of Studio) from Batch tasks

NOTE: If the translation is already in the TM, you can jump directly to step 3. 

The sdlxliff file got corrupt.