diff --git a/cocos2dx/support/base64.cpp b/cocos2dx/support/base64.cpp
index 5bd1304568..2151a8a396 100644
--- a/cocos2dx/support/base64.cpp
+++ b/cocos2dx/support/base64.cpp
@@ -101,7 +101,7 @@ int base64Decode(unsigned char *in, unsigned int inLength, unsigned char **out)
 		
 		if (ret > 0 )
 		{
-			std::printf("Base64Utils: error decoding");
+			printf("Base64Utils: error decoding");
 			delete [] *out;
 			*out = NULL;			
 			outLength = 0;
diff --git a/tests/tests/RenderTextureTest/RenderTextureTest.cpp b/tests/tests/RenderTextureTest/RenderTextureTest.cpp
index 8c2443cef3..f680389212 100644
--- a/tests/tests/RenderTextureTest/RenderTextureTest.cpp
+++ b/tests/tests/RenderTextureTest/RenderTextureTest.cpp
@@ -389,6 +389,10 @@ void RenderTextureZbuffer::ccTouchesEnded(CCSet* touches, CCEvent* event)
 void RenderTextureZbuffer::renderScreenShot()
 {
 	CCRenderTexture *texture = CCRenderTexture::renderTextureWithWidthAndHeight(512, 512);
+	if (NULL == texture)
+	{
+		return;
+	}
 	texture->setAnchorPoint(ccp(0, 0));
 	texture->begin();