php - CActiveDataProvider not resolving params in criteria

I'm following along with Agile Web Application Development with Yii 1.1 and PHP5, working on the "TrackStar" project. For the life of me I can't understand where my problem is. I'm getting the Exception:

CDbCommand failed to execute the SQL statement: SQLSTATE[HY093]: Invalid parameter number: parameter was not defined. The SQL statement executed was: SELECT COUNT(*) FROMtbl_issuet WHERE project_id=:projectId

It appears (to this noob's interpretation) that the params in my CActiveDataProvider is some how not resolving in the criteria as in the view:

(in /protected/controllers/ProjectController.php)

55         public function actionView()
56         {
57             $issueDataProvider = new CActiveDataProvider('Issue', array(
58                 'criteria' => array(
59                     'condition' => 'project_id=:projectId',
60                     'params' => array(':projectId=' => $this->loadModel()->id),
61                 ),
62                 'pagination' => array( 
63                     'pageSize' => 1,
64                 ),      
65             )); 
66             $this->render('view',array(
67                     'model'=>$this->loadModel(),
68                     'issueDataProvider' => $issueDataProvider,
69             ));
70         }
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I checked my code against a github repo and I couldn't find any differences anywhere. Is there something straightforward I'm missing here without having to post all of my code (and have somebody actually look through it)?