install.python_pg_config
psycopg2 needs PostgreSQL headers to build
A mevcore app hosting error at the “install and build” stage.
What it means
psycopg2 compiles from source and needs pg_config.
The error happened while installing dependencies or building the project. The new version was not started, the current one keeps running.
Typical causes
- The install or build command exited with an error
- Out of memory or disk space
- The language or package manager version is not the one the project expects
How to fix it on mevcore
Replace psycopg2 with psycopg2-binary (or psycopg[binary] for psycopg 3) in requirements.txt and deploy again.
- 1 Open the app in the mevcore panel: the Problems card on the overview shows this error and the log line it was found in.
- 2 After the fix, deploy again. If it fails again, the log ends with [mevcore] lines naming the new error code.
- 3 The "Ask AI" button next to the error prepares a request for ChatGPT or Claude: the error code, the end of the log without secrets and the app settings.
For an AI assistant
The same in English: paste it together with the log into the AI chat.
mevcore error code: install.python_pg_config phase: install and build diagnosis: psycopg2 needs PostgreSQL headers to build platform hint: psycopg2 compiles from source and needs pg_config. Replace psycopg2 with psycopg2-binary (or psycopg[binary] for psycopg 3) in requirements.txt and deploy again. platform docs: https://mevcore.com/llms-full.txt
Related errors
All error codes · How to prepare your project for mevcore · llms-full.txt
Can't fix it?
Message support with the error code: we will tell you what to change in the project or settings.