This issue is already reported on Windows. Ref: https://redmine.postgresql.org/issues/3433
Are you on Windows? If yes then which version? Please enable logging and provide the logs. To enable logging ref: https://www.pgadmin.org/faq/#8 On Fri, Jul 13, 2018 at 1:20 AM, Duffey, Blake <blake.duf...@noblis.org> wrote: > Launching pgAdmin 4 ver 3.1 against PG 9.5 > > > > User selects servers, database, schema > > > > Clicks Tools | Query Tools > > > > Is immediately hit with ‘Query Tool Initialize Error’ > > > > > > Thanks > >