diff --git a/framework/validators/CExistValidator.php b/framework/validators/CExistValidator.php
index c67c326c2..9d8e2e98e 100644
--- a/framework/validators/CExistValidator.php
+++ b/framework/validators/CExistValidator.php
@@ -76,7 +76,7 @@ class CExistValidator extends CValidator
 		if(is_array($value))
 		{
 			// https://github.com/yiisoft/yii/issues/1955
-			$this->addError($object,$attribute,Yii::t('yii','{attribute} must not have array value.'));
+			$this->addError($object,$attribute,Yii::t('yii','{attribute} is invalid.'));
 			return;
 		}
 
diff --git a/framework/validators/CNumberValidator.php b/framework/validators/CNumberValidator.php
index 98950bea0..5598a9088 100644
--- a/framework/validators/CNumberValidator.php
+++ b/framework/validators/CNumberValidator.php
@@ -81,7 +81,8 @@ class CNumberValidator extends CValidator
 		if(is_array($value))
 		{
 			// https://github.com/yiisoft/yii/issues/1955
-			$this->addError($object,$attribute,Yii::t('yii','{attribute} must not have array value.'));
+			$message=$this->message!==null?$this->message:Yii::t('yii','{attribute} must be a number.');
+			$this->addError($object,$attribute,$message);
 			return;
 		}
 		if($this->integerOnly)
diff --git a/framework/validators/CRegularExpressionValidator.php b/framework/validators/CRegularExpressionValidator.php
index 4b21d207d..048254c7b 100644
--- a/framework/validators/CRegularExpressionValidator.php
+++ b/framework/validators/CRegularExpressionValidator.php
@@ -48,12 +48,10 @@ class CRegularExpressionValidator extends CValidator
 			return;
 		if($this->pattern===null)
 			throw new CException(Yii::t('yii','The "pattern" property must be specified with a valid regular expression.'));
-		if(is_array($value))
-		{
-			// https://github.com/yiisoft/yii/issues/1955
-			$this->addError($object,$attribute,Yii::t('yii','{attribute} must not have array value.'));
-		}
-		elseif((!$this->not && !preg_match($this->pattern,$value)) || ($this->not && preg_match($this->pattern,$value)))
+		// reason of array checking explained here: https://github.com/yiisoft/yii/issues/1955
+		if(is_array($value) ||
+			(!$this->not && !preg_match($this->pattern,$value)) ||
+			($this->not && preg_match($this->pattern,$value)))
 		{
 			$message=$this->message!==null?$this->message:Yii::t('yii','{attribute} is invalid.');
 			$this->addError($object,$attribute,$message);
diff --git a/framework/validators/CStringValidator.php b/framework/validators/CStringValidator.php
index fb7f00cbf..181b79542 100644
--- a/framework/validators/CStringValidator.php
+++ b/framework/validators/CStringValidator.php
@@ -83,7 +83,7 @@ class CStringValidator extends CValidator
 		if(is_array($value))
 		{
 			// https://github.com/yiisoft/yii/issues/1955
-			$this->addError($object,$attribute,Yii::t('yii','{attribute} must not have array value.'));
+			$this->addError($object,$attribute,Yii::t('yii','{attribute} is invalid.'));
 			return;
 		}
 
diff --git a/framework/validators/CUniqueValidator.php b/framework/validators/CUniqueValidator.php
index fa491ee4a..e647f3f53 100644
--- a/framework/validators/CUniqueValidator.php
+++ b/framework/validators/CUniqueValidator.php
@@ -86,7 +86,7 @@ class CUniqueValidator extends CValidator
 		if(is_array($value))
 		{
 			// https://github.com/yiisoft/yii/issues/1955
-			$this->addError($object,$attribute,Yii::t('yii','{attribute} must not have array value.'));
+			$this->addError($object,$attribute,Yii::t('yii','{attribute} is invalid.'));
 			return;
 		}
 
diff --git a/tests/framework/validators/CExistValidatorTest.php b/tests/framework/validators/CExistValidatorTest.php
index ff6fce09c..a2a814f55 100644
--- a/tests/framework/validators/CExistValidatorTest.php
+++ b/tests/framework/validators/CExistValidatorTest.php
@@ -138,6 +138,5 @@ EOD;
 		$model->name = array('test_name');
 		$this->assertFalse($model->validate());
 		$this->assertTrue($model->hasErrors('name'));
-		$this->assertSame(array('Name must not have array value.'),$model->getErrors('name'));
 	}
 }
diff --git a/tests/framework/validators/CStringValidatorTest.php b/tests/framework/validators/CStringValidatorTest.php
index c1fe58d1d..82122399b 100644
--- a/tests/framework/validators/CStringValidatorTest.php
+++ b/tests/framework/validators/CStringValidatorTest.php
@@ -29,7 +29,6 @@ class CStringValidatorTest extends CTestCase
 		$model4->string1=array('1234567890');
 		$model4->validate(array('string1'));
 		$this->assertTrue($model4->hasErrors('string1'));
-		$this->assertSame(array('String1 must not have array value.'),$model4->getErrors('string1'));
 	}
 
 	public function testMax()
@@ -59,7 +58,6 @@ class CStringValidatorTest extends CTestCase
 		$model4->string2=array('1234567890');
 		$model4->validate(array('string2'));
 		$this->assertTrue($model4->hasErrors('string2'));
-		$this->assertSame(array('String2 must not have array value.'),$model4->getErrors('string2'));
 	}
 
 	public function testIs()
@@ -96,6 +94,5 @@ class CStringValidatorTest extends CTestCase
 		$model5->string3=array('1234567890');
 		$model5->validate(array('string3'));
 		$this->assertTrue($model5->hasErrors('string3'));
-		$this->assertSame(array('String3 must not have array value.'),$model5->getErrors('string3'));
 	}
 }
diff --git a/tests/framework/validators/CUniqueValidatorTest.php b/tests/framework/validators/CUniqueValidatorTest.php
index 955dd866e..ddb1d67a7 100644
--- a/tests/framework/validators/CUniqueValidatorTest.php
+++ b/tests/framework/validators/CUniqueValidatorTest.php
@@ -138,6 +138,5 @@ EOD;
 		$model->name = array('test_name');
 		$this->assertFalse($model->validate());
 		$this->assertTrue($model->hasErrors('name'));
-		$this->assertSame(array('Name must not have array value.'),$model->getErrors('name'));
 	}
 }