'Regenerate SSAS multidimentional partitions files from the database

I have an ssas cube and I want to create the solution with ssdt on visual studio. I need to generate the .partations file of the cube.

When I do New Project -> Import from server (multidimentional and data mining) The project is created but the .partations file are empty (2ko)

I tried with VS2019, 2017 and BIDS2008R2, it's always the same problem

Any idea about this issue ?

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