Why am i getting a 'typeerror' when trying to concatenate a string and an integer?

Example:

age = 25
message = 'I am ' + age + ' years old.'

Solution:

age = 25
message = 'I am ' + str(age) + ' years old.'

In Python, you can't directly concatenate strings with other data types. Convert the integer to a string using the `str()` function before concatenating.