{"record":{"id":"579e0563cab5c7a6","repo":"XTLS/Xray-core","slug":"user-s-already-exists","errorCode":null,"errorMessage":"User %s already exists.","messagePattern":"User (.+?) already exists\\.","errorType":"validation","errorClass":null,"httpStatus":null,"severity":"error","filePath":"proxy/shadowsocks_2022/inbound_multi.go","lineNumber":102,"sourceCode":"\t\tC.Map(memUsers, func(it *protocol.MemoryUser) string { return it.Account.(*MemoryAccount).Key }),\n\t)\n\tif err != nil {\n\t\treturn nil, errors.New(\"create service\").Base(err)\n\t}\n\n\tinbound.service = service\n\treturn inbound, nil\n}\n\n// AddUser implements proxy.UserManager.AddUser().\nfunc (i *MultiUserInbound) AddUser(ctx context.Context, u *protocol.MemoryUser) error {\n\ti.Lock()\n\tdefer i.Unlock()\n\n\tif u.Email != \"\" {\n\t\tfor idx := range i.users {\n\t\t\tif i.users[idx].Email == u.Email {\n\t\t\t\treturn errors.New(\"User \", u.Email, \" already exists.\")\n\t\t\t}\n\t\t}\n\t}\n\ti.users = append(i.users, u)\n\n\t// sync to multi service\n\t// Considering implements shadowsocks2022 in xray-core may have better performance.\n\ti.service.UpdateUsersWithPasswords(\n\t\tC.MapIndexed(i.users, func(index int, it *protocol.MemoryUser) int { return index }),\n\t\tC.Map(i.users, func(it *protocol.MemoryUser) string { return it.Account.(*MemoryAccount).Key }),\n\t)\n\n\treturn nil\n}\n\n// RemoveUser implements proxy.UserManager.RemoveUser().\nfunc (i *MultiUserInbound) RemoveUser(ctx context.Context, email string) error {\n\tif email == \"\" {","sourceCodeStart":84,"sourceCodeEnd":120,"githubUrl":"https://github.com/XTLS/Xray-core/blob/7d214f8b094f75322fa3990f8aadad1c912f24f5/proxy/shadowsocks_2022/inbound_multi.go#L84-L120","documentation":"Error \"User %s already exists.\" thrown in XTLS/Xray-core.","triggerScenarios":"Thrown at proxy/shadowsocks_2022/inbound_multi.go:102 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":[],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"7d214f8b094f75322fa3990f8aadad1c912f24f5","analyzedAt":"2026-08-15T14:26:24.325Z","schemaVersion":2},"datasetVersion":"2026-08-15T22:17:37.221Z"}