docs/sql-error-conditions-connect-error-class.md

---
layout: global
title: CONNECT error class
displayTitle: CONNECT error class
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SQLSTATE: 56K00

Generic Spark Connect error.

This error class has the following derived error classes:

## INTERCEPTOR_CTOR_MISSING

Cannot instantiate GRPC interceptor because `<cls>` is missing a default constructor without arguments.

## INTERCEPTOR_RUNTIME_ERROR

Error instantiating GRPC interceptor: `<msg>`

## PLUGIN_CTOR_MISSING

Cannot instantiate Spark Connect plugin because `<cls>` is missing a default constructor without arguments.

## PLUGIN_RUNTIME_ERROR

Error instantiating Spark Connect plugin: `<msg>`

## SESSION_NOT_SAME

Both Datasets must belong to the same SparkSession.