Postgres migration error

[tejeshbhalla]

Describe the bug
While setting up langflow locally on postgres i get error

postgres-1 | 2024-04-04 17:09:20.050 UTC [69] ERROR: duplicate key value violates unique constraint "ix_user_username" postgres-1 | 2024-04-04 17:09:20.050 UTC [69] DETAIL: Key (username)=(superuser) already exists. postgres-1 | 2024-04-04 17:09:20.050 UTC [69] STATEMENT: INSERT INTO "user" (id, username, password, profile_image, is_active, is_superuser, create_at, updated_at, last_login_at, store_api_key) VALUES ('d81401a3-4798-4f99-a30e-a01f678e7e75'::UUID, 'superuser', '$2b$12$0FNtcrd.0c70wZPXWu3Bdux1Tk82k07.gRd2Yfbq8zZcLIqYrZm92', NULL, true, true, '2024-04-04T17:09:20.048501'::timestamp, '2024-04-04T17:09:20.048504'::timestamp, NULL, NULL) langflow-1 | No new upgrade operations detected. langflow-1 | No new upgrade operations detected. langflow-1 | [04/04/24 17:09:20] INFO 2024-04-04 17:09:20 - INFO - utils utils.py:84 langflow-1 | - LLM caching setup with SQLiteCache postgres-1 | 2024-04-04 17:09:20.076 UTC [70] ERROR: duplicate key value violates unique constraint "ix_user_username" postgres-1 | 2024-04-04 17:09:20.076 UTC [70] DETAIL: Key (username)=(superuser) already exists. postgres-1 | 2024-04-04 17:09:20.076 UTC [70] STATEMENT: INSERT INTO "user" (id, username, password, profile_image, is_active, is_superuser, create_at, updated_at, last_login_at, store_api_key) VALUES ('7060f313-41da-4342-8149-b1b74bd5898a'::UUID, 'superuser', '$2b$12$CT1Bov9kd3MF/W6V55EbBeY.oDYyt8UxSIKmG8GCOvFkcUBAB7UP2', NULL, true, true, '2024-04-04T17:09:20.074609'::timestamp, '2024-04-04T17:09:20.074612'::timestamp, NULL, NULL) langflow-1 | No new upgrade operations detected.

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[dosubot]

Hey there, @tejeshbhalla! 🚀 Great to see you diving into Langflow. Looks like you've hit a bit of a snag, but no worries, we're here to help you sort it out. Let's tackle this together!

Based on the error message you provided, it seems like the username "superuser" is already present in your database, which is causing the violation of the unique constraint "ix_user_username".

To resolve this issue, you can change the DEFAULT_SUPERUSER value in the constants.py file to a unique username. Here's how you can do it:

1. Open the constants.py file located at src/backend/langflow/services/settings/.
2. Modify the DEFAULT_SUPERUSER value to a unique username. For example:

DEFAULT_SUPERUSER = "unique_langflow_superuser"
DEFAULT_SUPERUSER_PASSWORD = "langflow"

3. Save the changes to the constants.py file.
4. Rerun your migration or setup process.

This change will attempt to create a superuser with a new, unique username, thus avoiding the violation of the unique constraint "ix_user_username". You can refer to the constants.py file in the Langflow repository for more details.

If you're still encountering issues, it might be helpful to check out these similar threads on the Langflow repository:

1. Error in DB migration with PostgreSQL for Langflow v0.6
2. Upgrading 0.5.12 to 0.6.4 failed, and directly using 0.6.4 to start the program also failed.
3. The migration is failed when the database is postgresql

These threads discuss similar issues and might provide additional insights or solutions. If you continue to experience problems, please provide more details about your setup process and any additional error messages you're receiving. This will help me better understand your situation and provide more accurate assistance.

Sources

• Error in DB migration with PostgreSQL for Langflow v0.6
• Upgrading 0.5.12 to 0.6.4 failed, and directly using 0.6.4 to start the program also failed.
• The migration is failed when the database is postgresql
• src/backend/langflow/services/settings/constants.py
• .env.example

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[anovazzi1]

Hello,
Sorry for the delay. Did you try using the new version? Does the error still persist?