Quick Answer

Fix incomplete code blocks.

Understanding the Issue

This syntax error occurs when Ruby expects more code (e.g., missing "end" keywords or incomplete blocks).

The Problem

This code demonstrates the issue:

Ruby Error 
def calculate
  (1..10).each do |i|
    puts i * 2
  # Missing end

The Solution

Here's the corrected code:

Ruby Fixed 
# Correct syntax:
def calculate
  (1..10).each do |i|
    puts i * 2
  end
end

# Tools to help:
# 1. Use editor with Ruby syntax highlighting
# 2. Ruby -c flag to check syntax:
# ruby -c yourfile.rb
# 3. Consistent indentation

# Common fixes:
# - Match all do/end blocks
# - Close all parentheses/braces
# - Complete string literals and regexes

Key Takeaways

Balance all code blocks and use proper indentation.