Bug #12169: How to solve the following error - An error occurred while sending the digest (undefined method `length' for true:TrueClass)

• Status: Rejected
• Assignee: -
• Target version: -
• Backport: 2.1: UNKNOWN, 2.2: UNKNOWN, 2.3: UNKNOWN

[shruthi (shruthi ss)]

Steps to reproduce
1)Install Redmine 3
2)Install redmine_digest
3)Navigate to plugins
4)Configure redmine digest plugin
5)Click on Apply
6)Click on Send a test email to your email address
Actual result:An error occurred while sending the digest (undefined method `length' for true:TrueClass)

[hsbt (Hiroshi SHIBATA)]

• Status changed from Open to Rejected
• Assignee deleted (akr (Akira Tanaka))

It's redmine or some plugin issue. Not ruby language issue.