My app has been running fine under 3.1.x for some time now. It currently is running under 3.1.3. I attempted to migrate to 3.2.1; however I get the following error every time I make a db query: <pre class="prettyprint"><code>NoMethodError: undefined method `synchronize' for nil:NilClass </code></pre> This occurs with any active-record query such as User.first, User.all, User.find(1), etc. I have tried using multiple versions of the sqlite3 gem in development to see if that was the issue but I haven't had any luck. The version I tried was 1.3.5 w/ Rails 3.2.1.

try update gem "kaminari" from "0.12.4" to "0.13.0"

Rails 3.1.3 -> 3.2.1 Error

Tags:

ruby-on-rails-3.2

My app has been running fine under 3.1.x for some time now. It currently is running under 3.1.3. I attempted to migrate to 3.2.1; however I get the following error every time I make a db query:

NoMethodError: undefined method `synchronize' for nil:NilClass

This occurs with any active-record query such as User.first, User.all, User.find(1), etc. I have tried using multiple versions of the sqlite3 gem in development to see if that was the issue but I haven't had any luck. The version I tried was 1.3.5 w/ Rails 3.2.1.