Kong/insomnia · error

Uploaded file is unsupported ${fileType}

Error message

Uploaded file is unsupported ${fileType}

What it means

Error "Uploaded file is unsupported ${fileType}" thrown in Kong/insomnia.

Source

Thrown at packages/insomnia-inso/src/cli.ts:250

    // Replace CRLF (Windows line break) and CR (Mac link break) with \n, then split into csv arrays
    const csvRows = content
      .replace(/\r\n|\r/g, '\n')
      .split('\n')
      .map(row => row.split(','));
    // at least 2 rows required for csv
    if (csvRows.length > 1) {
      const csvHeaders = csvRows[0];
      const csvContentRows = csvRows.slice(1);
      return csvContentRows.map(contentRow =>
        csvHeaders.reduce((acc: Record<string, any>, cur, idx) => {
          acc[cur] = contentRow[idx] ?? '';
          return acc;
        }, {}),
      );
    }
    throw new Error('CSV file must contain at least two rows with first row as variable names');
  }
  throw new Error(`Uploaded file is unsupported ${fileType}`);
};

const transformIterationDataToEnvironmentList = (list: Record<string, string>[]): UserUploadEnvironment[] => {
  return list?.map(data => {
    const orderedJson = orderedJSON.parse<Record<string, any>>(
      JSON.stringify(data || []),
      JSON_ORDER_PREFIX,
      JSON_ORDER_SEPARATOR,
    );
    return {
      name: 'User Upload',
      data: orderedJson.object,
      dataPropertyOrder: orderedJson.map || null,
    };
  });
};

export const go = (args?: string[]) => {

View on GitHub (pinned to d9bb2b0142)

When it happens

Trigger: Thrown at packages/insomnia-inso/src/cli.ts:250 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of Kong/insomnia@d9bb2b0142 (2026-08-26). Data as JSON: /api/errors/e1351aa3c1950aaf. Report an issue: GitHub.