Greetings ... tell you that a couple of days ago I have a project in Vivado 2017.3, which correctly implemented it from the cygwin terminal with a python script using Vivado 2017.3.
Now the problem I have is that I can't implement the same project using Vivado 2018.3. I already tried to follow the recommendation of the following link but I still have the same error shown in the attached image.

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Can someone please help me solve this problem. I leave the python script ( attached.