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"Object reference not set to an instance of an object" error message with SDL Trados 2017

Hi everyone,

This seems to be a perennial problem, but none of the suggested solutions I've found so far refer specifically to SDL Trados 2017.

I'm getting the "Object reference not set to an instance of an object" error message, which appears when I'm trying to open a file for the first time, and means the file won't open. It seemed to be working fine before I went on holiday, and the problem doesn't occur with packages. I already tried all the solutions suggested in article #4984.

Any ideas?

Thanks,
Neil