UnicodeEncodeError when printing emoji characters on Windows (cp1252 encoding)

[AtharvaDomale]

Installation Method

• Docker (specify docker image version/tag): .._
• Claude Desktop DXT extension (specify docker image version/tag): .._
• Local Python setup

When does the error occur?

• At startup
• During tool call (specify which tool):
  • get_person_profile
  • get_company_profile
  • get_job_details
  • search_jobs
  • get_recommended_jobs
  • close_session

MCP Client Configuration

Claude Desktop Config (/Users/[username]/Library/Application Support/Claude/claude_desktop_config.json):

{
  "mcpServers": {
    "linkedin": {
      "method": "local-python",
      "command": "uv run main.py",
      "directory": "C:\\User_name\\linkedin-mcp-server"
    }
  }
}

MCP Client Logs

Claude Desktop Logs (/Users/[username]/Library/Logs/Claude/mcp-server-LinkedIn MCP Server.log):

UnicodeEncodeError: 'charmap' codec can't encode character '\u2705' in position 0: character maps to <undefined>
UnicodeEncodeError: 'charmap' codec can't encode character '\u274c' in position 2: character maps to <undefined>

Error Description

On Windows with Python 3.12, the MCP server crashes when it tries to print emoji characters like ✅ (\u2705) and ❌ (\u274c). The console uses the default cp1252 encoding, which can't represent these characters, resulting in a UnicodeEncodeError.

This causes the MCP server to exit immediately during initialization.