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Common Errors

We've compiled a list of the most common errors users face when using Reflex. If you have encountered an error that isn't answered here, feel free to reach out to us on our Discord.

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Common Errors

We've compiled a list of the most common errors users face when using Reflex. If you have encountered an error that isn't answered here, feel free to reach out to us on our Discord.

Object null is not iterable

Hydration failed because the initial UI does not match

Invalid var passed for prop

TypeError: metaclass conflict (SQLModel)

ImportError: couldn't import psycopg

Common Errors

We've compiled a list of the most common errors users face when using Reflex. If you have encountered an error that isn't answered here, feel free to reach out to us on our .css-1macts:hover{color:var(--accent-8);}Discord.

Object null is not iterable

Hydration failed because the initial UI does not matchUnhandled Runtime ErrorError: Hydration failed because the initial UI does not match what was rendered on the server.

Hydration failed because the initial UI does not match

Invalid var passed for propTypeError: Invalid var passed for prop href, expected type <class 'str'>, got value {state.my_list.at(i)} of type typing.Any.

Invalid var passed for prop

TypeError: metaclass conflict (SQLModel)Python ErrorTypeError: metaclass conflict: the metaclass of a derived class must be a (non-strict) subclass of the metaclasses of all its bases

TypeError: metaclass conflict (SQLModel)

ImportError: couldn't import psycopgImport ErrorImportError: couldn't import psycopg 'python' implementation: libpq library not found | couldn't import psycopg 'binary' implementation: No module named 'psycopg_binary' | couldn't import psycopg 'c' implementation: No module named 'psycopg_c'

ImportError: couldn't import psycopg

We've compiled a list of the most common errors users face when using Reflex. If you have encountered an error that isn't answered here, feel free to reach out to us on our Discord.