# [Rails4][err][psql]fe_sendauth: no password supplied ###### tags: `Rails4`,`err`,`psql` 在本地端運行rails,連本地psql資料庫, 出現以下錯誤： PG::ConnectionBad at ...(省略) fe_sendauth: no password supplied 可能的解決方式: 修改database.yml 把host那一行拿掉 ```ruby development: adapter: postgresql encoding: unicode pool: 5 database: db_name host: localhost #<--這行拿掉 ``` 修改後： ```ruby development: adapter: postgresql encoding: unicode pool: 5 database: db_name ```