doctrine/orm · error · Exception

Unable to retrieve association information for column "%s"

Error message

Unable to retrieve association information for column "%s"

What it means

Error "Unable to retrieve association information for column "%s"" thrown in doctrine/orm.

Source

Thrown at src/Internal/Hydration/SimpleObjectHydrator.php:118

                ));
            }

            $discrMap = $this->class->discriminatorMap;

            if (! isset($discrMap[$row[$discrColumnName]])) {
                throw HydrationException::invalidDiscriminatorValue($row[$discrColumnName], array_keys($discrMap));
            }

            $entityName       = $discrMap[$row[$discrColumnName]];
            $discrColumnValue = $row[$discrColumnName];

            unset($row[$discrColumnName]);
        }

        foreach ($row as $column => $value) {
            // An ObjectHydrator should be used instead of SimpleObjectHydrator
            if (isset($this->resultSetMapping()->relationMap[$column])) {
                throw new Exception(sprintf('Unable to retrieve association information for column "%s"', $column));
            }

            $cacheKeyInfo = $this->hydrateColumnInfo($column);

            if (! $cacheKeyInfo) {
                continue;
            }

            // If we have inheritance in resultset, make sure the field belongs to the correct class
            if (isset($cacheKeyInfo['discriminatorValues']) && ! in_array((string) $discrColumnValue, $cacheKeyInfo['discriminatorValues'], true)) {
                continue;
            }

            // Check if value is null before conversion (because some types convert null to something else)
            $valueIsNull = $value === null;

            // Convert field to a valid PHP value
            if (isset($cacheKeyInfo['type'])) {

View on GitHub (pinned to d9b9ff7301)

When it happens

Trigger: Thrown at src/Internal/Hydration/SimpleObjectHydrator.php:118 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of doctrine/orm@d9b9ff7301 (2026-08-21). Data as JSON: /api/errors/6ca338074cd4c0cf. Report an issue: GitHub.