The data directory was initialized by PostgreSQL version 9.6, which is not compatible with this version 10.0.

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在PostgreSQL9.6.5 安裝 Postgis2.4.2 出現錯誤
The data directory was initialized by PostgreSQL version 9.6, which is not compatible with this version 10.0.
post2.4.2 需要PostgreSQL10 以上
如果 運行 brew services start postgresql 服務還在
也可以 brew services stop postgresql
但是進入不了psql -u xxx -d xxx 進不了資料庫
解決：
brew switch postgres 9.6.5

The data directory was initialized by PostgreSQL version 9.6, which is not compatible with this version 10.0.