Errors

valid_signature
Old SIGNATURE detected. Please inform the module author to regenerate SIGNATURE using Module::Signature version 0.82 or newer.
gpg: Signature made Fri 21 Apr 2006 11:13:30 PM JST
gpg:                using DSA key 642BA2984E758317
gpg: Can't check signature: No public key
--- SIGNATURE Fri Apr 21 23:13:30 2006
+++ 
@@ -1,6 +1,6 @@
 SHA1 66634c6b565c1bc474155395b2b11e078f344a0a Changes
 SHA1 0d9e497c81e9f54e44a7d1ff000ddc67bb4d9d8c MANIFEST
-SHA1 f346300c999a72e343b7d747fcce4ef80e5a44f2 META.yml
+SHA1 9e52fb658596b4c77d26051da42b2e3f4d0f13e5 META.yml
 SHA1 de2231158b62347c37c459251794830212966f7f Makefile.PL
 SHA1 25eb6cd40718ac6aa2f1fd85b368c847eabd40d1 README
 SHA1 424500b1c8877bc4b1fb69eca37dbf36f06b187a lib/Math/SymbolicX/Error.pm
==> MISMATCHED content between SIGNATURE and distribution files! <==