Hello
I tried Upgrading Postgres in linux and then on Windows both gave same
error message
C:\Program Files\edb\as11\bin>pg_upgrade -c -b "C:\Program
Files\PostgreSQL\10\bin" -B "C:\Program Files\edb\as11\bin" -d "C:\Program
Files\PostgreSQL\10\data" -D "C:\Program Files\edb\as11\data1"
could not open version file: C:\Program Files\edb\as11\data1/PG_VERSION
Failure, exiting
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Best Regards,
Ankush Chawla