CSV error messages, explained.

Match common importer errors to the exact CSV issue and fix.

First result is free. Full report is $9.99 (diagnostics, context, fix steps).

Result


        

Error message library

PostgreSQL COPY

  • COPY: ERROR: extra data after last expected column
  • COPY: ERROR: missing data for column "col2"
  • COPY: ERROR: invalid byte sequence for encoding "UTF8"
  • COPY: ERROR: unterminated CSV quoted field

pandas / Python

  • pandas: ParserError: Expected 6 fields in line 143, saw 7
  • pandas: ParserError: EOF inside string starting at line 12
  • pandas: ParserError: Expected 5 fields in line 2, saw 1
  • Python: UnicodeDecodeError: 'utf-8' codec can't decode byte 0x96

BigQuery

  • BigQuery: Error while reading data, error_message: Too many values in line.
  • BigQuery: Error while reading data, error_message: Too few columns in line.
  • BigQuery: Error while reading data, error_message: CSV table encountered too many errors, giving up.
  • BigQuery: Error while reading data, error_message: Could not parse row with too few columns.

Generic importers

  • Importer: Extra data after last expected column
  • Importer: Inconsistent number of columns in row
  • Importer: Invalid byte sequence for encoding UTF-8
  • Importer: Unclosed quoted field in CSV input

Map each message to a fix

Search terms

Also searched as: CSV error messages, CSV import error message, CSV parser error, CSV load error.

Trust, Limits & Pricing

  • Processed transiently for analysis and discarded immediately after. We don't store CSV contents.
  • Max file size: 10 MB.
  • Supported delimiters: , ; | TAB.
  • We stop at the first breaking error.
  • First analysis (line, cause, fix) is free.
  • Full report: $9.99.

FAQ

What is a CSV error message?

It is the exact text shown by an importer when a CSV row breaks parsing.

Which tools are covered?

We include common errors from Postgres COPY, pandas, and BigQuery, plus generic importer messages.

How much is the full report?

The full report costs $9.99 and includes diagnostics, a sanitized context snapshot, and step-by-step fixes. The first analysis (line, cause, fix) is free.