apache/flink · error · RuntimeException

Unsupported type information '%s'.

Error message

Unsupported type information '%s'.

What it means

Error "Unsupported type information '%s'." thrown in apache/flink.

Source

Thrown at flink-formats/flink-csv/src/main/java/org/apache/flink/formats/csv/RowCsvInputFormat.java:281

            return (node) -> LocalDateTime.parse(node.asText().trim(), SQL_TIMESTAMP_FORMAT);
        } else if (info.equals(Types.INSTANT)) {
            return (node) ->
                    LocalDateTime.parse(node.asText(), SQL_TIMESTAMP_WITH_LOCAL_TIMEZONE_FORMAT)
                            .toInstant(ZoneOffset.UTC);
        } else if (info instanceof RowTypeInfo) {
            final RowTypeInfo rowTypeInfo = (RowTypeInfo) info;
            return createRowRuntimeConverter(rowTypeInfo, ignoreParseErrors, false);
        } else if (info instanceof BasicArrayTypeInfo) {
            return createObjectArrayRuntimeConverter(
                    ((BasicArrayTypeInfo<?, ?>) info).getComponentInfo(), ignoreParseErrors);
        } else if (info instanceof ObjectArrayTypeInfo) {
            return createObjectArrayRuntimeConverter(
                    ((ObjectArrayTypeInfo<?, ?>) info).getComponentInfo(), ignoreParseErrors);
        } else if (info instanceof PrimitiveArrayTypeInfo
                && ((PrimitiveArrayTypeInfo) info).getComponentType() == Types.BYTE) {
            return createByteArrayRuntimeConverter(ignoreParseErrors);
        } else {
            throw new RuntimeException("Unsupported type information '" + info + "'.");
        }
    }

    private static RuntimeConverter createObjectArrayRuntimeConverter(
            TypeInformation<?> elementType, boolean ignoreParseErrors) {
        final Class<?> elementClass = elementType.getTypeClass();
        final RuntimeConverter elementConverter =
                createNullableRuntimeConverter(elementType, ignoreParseErrors);

        return (node) -> {
            final int nodeSize = node.size();
            final Object[] array = (Object[]) Array.newInstance(elementClass, nodeSize);
            for (int i = 0; i < nodeSize; i++) {
                array[i] = elementConverter.convert(node.get(i));
            }
            return array;
        };
    }

View on GitHub (pinned to 2f3c205e92)

Solutions

1. Address the cause reported by the error message: Unsupported type information 'the reported value'.
2. Verify the inputs, configuration values, and classpath/dependency setup related to this operation, then retry.

Example fix

Correct the condition described ("Unsupported type information 'the reported value'.") and rerun the job or command.

When it happens

Trigger: Triggered at runtime when the operation fails because: Unsupported type information 'the reported value'.

Common situations: Commonly caused by misconfiguration, missing dependencies or files, unsupported types or operations, or invalid user input leading to: Unsupported type information 'the reported value'.

AI-assisted analysis of apache/flink@2f3c205e92 (2026-08-14). Data as JSON: /api/errors/9d49b42c13365339. Report an issue: GitHub.