org.postgresql.util.PSQLException: ERROR: duplicate key value violates unique constraint "logininfo_username_key" Detail: Key (username)=(8a8f81e44836e744014836e9b9460002) already exists.

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Try downgrading PostgresSQL server to 9.5 or update your PostgresSQL driver to 9.4-1211 with the following command: <postgresql.version>9.4.1211</postgresql.version>

Solutions on the web

via Atlassian JIRA by Scott Dudley [Arsenale], 1 year ago
ERROR: duplicate key value violates unique constraint "logininfo_username_key" Detail: Key (username)=(8a8f81e44836e744014836e9b9460002) already exists.
via Stack Overflow by devoured elysium
, 2 years ago
ERROR: duplicate key value violates unique constraint "users_mail_key" Detail: Key (mail)=(xpto@gmail.com) already exists.
via Google Groups by Unknown author, 3 months ago
ERROR: duplicate key value violates unique constraint "instance_pk" Detail: Key (pk)=(53161) already exists.
via Stack Overflow by Gustavo
, 1 year ago
ERROR: duplicate key value violates unique constraint "uk_1t68827l97cwyxo9r1u6t4p7d" Detail: Key (name)=(Tech) already exists.
via GitHub by zifeishan
, 2 years ago
ERROR: duplicate key violates unique constraint "dd_graph_variables_pkey" (seg20 rulk.stanford.edu:40000 pid=25436)
via Stack Overflow by Prabodh Hend
, 1 year ago
ERROR: duplicate key violates unique constraint "table1_pkey" (seg576 sdw24:40000 pid=398877)
org.postgresql.util.PSQLException: ERROR: duplicate key value violates unique constraint "logininfo_username_key" Detail: Key (username)=(8a8f81e44836e744014836e9b9460002) already exists.

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