Following the instructions here (https://github.com/SwankInnovations/ radiant-sns-extension), I encountered this error:
$ rake db:migrate:extensions --trace (in /home/tom/dev/valchemy1) ** Invoke db:migrate:extensions (first_time) ** Invoke environment (first_time) ** Execute environment ** Execute db:migrate:extensions rake aborted! SQLite3::SQLException: no such table: extension_meta: SELECT schema_version FROM extension_meta WHERE name = 'Smarty Pants Filter' /usr/lib/ruby/gems/1.8/gems/radiant-0.9.1/vendor/rails/activerecord/ lib/active_record/connection_adapters/abstract_adapter.rb:221:in `log' /usr/lib/ruby/gems/1.8/gems/radiant-0.9.1/vendor/rails/activerecord/ lib/active_record/connection_adapters/sqlite_adapter.rb:172:in `execute' /usr/lib/ruby/gems/1.8/gems/radiant-0.9.1/vendor/rails/activerecord/ lib/active_record/connection_adapters/sqlite_adapter.rb:417:in `catch_schema_changes' /usr/lib/ruby/gems/1.8/gems/radiant-0.9.1/vendor/rails/activerecord/ lib/active_record/connection_adapters/sqlite_adapter.rb:172:in `execute' /usr/lib/ruby/gems/1.8/gems/radiant-0.9.1/vendor/rails/activerecord/ lib/active_record/connection_adapters/sqlite_adapter.rb:320:in `select' /usr/lib/ruby/gems/1.8/gems/radiant-0.9.1/vendor/rails/activerecord/ lib/active_record/connection_adapters/abstract/database_statements.rb: 7:in `select_all_without_query_cache' /usr/lib/ruby/gems/1.8/gems/radiant-0.9.1/vendor/rails/activerecord/ lib/active_record/connection_adapters/abstract/query_cache.rb:62:in `select_all' /usr/lib/ruby/gems/1.8/gems/radiant-0.9.1/vendor/rails/activerecord/ lib/active_record/connection_adapters/abstract/database_statements.rb: 13:in `select_one' /usr/lib/ruby/gems/1.8/gems/radiant-0.9.1/vendor/rails/activerecord/ lib/active_record/connection_adapters/abstract/database_statements.rb: 19:in `select_value' /usr/lib/ruby/gems/1.8/gems/radiant-0.9.1/lib/radiant/ extension_migrator.rb:42:in `initialize_extension_schema_migrations' /usr/lib/ruby/gems/1.8/gems/radiant-0.9.1/lib/radiant/ extension_migrator.rb:25:in `initialize' /usr/lib/ruby/gems/1.8/gems/radiant-0.9.1/vendor/rails/activerecord/ lib/active_record/migration.rb:401:in `new' /usr/lib/ruby/gems/1.8/gems/radiant-0.9.1/vendor/rails/activerecord/ lib/active_record/migration.rb:401:in `up' /usr/lib/ruby/gems/1.8/gems/radiant-0.9.1/vendor/rails/activerecord/ lib/active_record/migration.rb:383:in `migrate' /usr/lib/ruby/gems/1.8/gems/radiant-0.9.1/lib/radiant/ extension_migrator.rb:7:in `migrate' /usr/lib/ruby/gems/1.8/gems/radiant-0.9.1/lib/radiant/ extension_migrator.rb:12:in `migrate_extensions' /usr/lib/ruby/gems/1.8/gems/radiant-0.9.1/lib/radiant/ extension_migrator.rb:11:in `each' /usr/lib/ruby/gems/1.8/gems/radiant-0.9.1/lib/radiant/ extension_migrator.rb:11:in `migrate_extensions' /usr/lib/ruby/gems/1.8/gems/radiant-0.9.1/lib/tasks/extensions.rake:8 /usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:636:in `call' /usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:636:in `execute' /usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:631:in `each' /usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:631:in `execute' /usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:597:in `invoke_with_call_chain' /usr/lib/ruby/1.8/monitor.rb:242:in `synchronize' /usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:590:in `invoke_with_call_chain' /usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:583:in `invoke' /usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2051:in `invoke_task' /usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `top_level' /usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `each' /usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `top_level' /usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2068:in `standard_exception_handling' /usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2023:in `top_level' /usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2001:in `run' /usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2068:in `standard_exception_handling' /usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:1998:in `run' /usr/lib/ruby/gems/1.8/gems/rake-0.8.7/bin/rake:31 /usr/bin/rake:19:in `load' /usr/bin/rake:19 Thanks in advance for any advice in helping me resolve this.