added faq about imap bignum problem

[sup] / README.txt

diff --git a/README.txt b/README.txt
index c9e69adad8a08d7987d941e032a16e57bfa31ad1..b61fa4fef14b361c198aeeb18878deb895a43e04 100644 (file)
--- a/README.txt
+++ b/README.txt
@@ -124,7 +124,10 @@ Current limitations which will be fixed:
   No worries, just re-run sup-import. (This is unresolved atm.)
 * There are a couple other Ferret issues with outstanding patches but
   they are pretty rare.
-
+* If you are using IMAP and see this error:
+    /usr/local/lib/ruby/1.8/yaml.rb:133:in `transfer': allocator undefined for Bignum (TypeError)
+  then you need to upgrade to Ruby 1.8.5. YAML in earlier versions
+  can't parse BigNums, but IMAP requires that functionality.
 
 == LICENSE: