Yii framework error - "failed to open stream: permission denied" - yii

Question

I have just started to use Yii framework on a windows 7 machine. It's giving me this annoying error and it goes away when I restart the computer.
Can anyone shed some light on what's happening and how to fix it?.. Thanks a bunch
Here is the error I get:
PHP warning
copy(C:\www\corp\assets\96296f5a\js\ckeditor\plugins\imagepaste2.3.zip): failed to open stream: Permission denied
C:\www\yii-1.1.13\framework\utils\CFileHelper.php(131)
119
120 $folder=opendir($src);
121 while(($file=readdir($folder))!==false)
122 {
123 if($file==='.' || $file==='..')
124 continue;
125 $path=$src.DIRECTORY_SEPARATOR.$file;
126 $isFile=is_file($path);
127 if(self::validatePath($base,$file,$isFile,$fileTypes,$exclude))
128 {
129 if($isFile)
130 {
131 copy($path,$dst.DIRECTORY_SEPARATOR.$file);
132 if(isset($options['newFileMode']))
133 chmod($dst.DIRECTORY_SEPARATOR.$file,$options['newFileMode']);
134 }
135 elseif($level)
136 self::copyDirectoryRecursive($path,$dst.DIRECTORY_SEPARATOR.$file,$base.'/'.$file,$fileTypes,$exclude,$level-1,$options);
137 }
138 }
139 closedir($folder);
140 }
141
142 /**
143 * Returns the files found under the specified directory and subdirectories.
Stack Trace
#0
+
C:\www\yii-1.1.13\framework\utils\CFileHelper.php(131): copy("C:\www\corp\protected\extensions\bootstrap\assets\js\ckeditor\pl...", "C:\www\corp\assets\96296f5a\js\ckeditor\plugins\imagepaste2.3.zi...")
#1
+
C:\www\yii-1.1.13\framework\utils\CFileHelper.php(136): CFileHelper::copyDirectoryRecursive("C:\www\corp\protected\extensions\bootstrap\assets\js\ckeditor\pl...", "C:\www\corp\assets\96296f5a\js\ckeditor\plugins", "/js/ckeditor/plugins", array(), ...)
#2
+
C:\www\yii-1.1.13\framework\utils\CFileHelper.php(136): CFileHelper::copyDirectoryRecursive("C:\www\corp\protected\extensions\bootstrap\assets\js\ckeditor", "C:\www\corp\assets\96296f5a\js\ckeditor", "/js/ckeditor", array(), ...)
#3
+
C:\www\yii-1.1.13\framework\utils\CFileHelper.php(136): CFileHelper::copyDirectoryRecursive("C:\www\corp\protected\extensions\bootstrap\assets\js", "C:\www\corp\assets\96296f5a\js", "/js", array(), ...)
#4
+
C:\www\yii-1.1.13\framework\utils\CFileHelper.php(63): CFileHelper::copyDirectoryRecursive("C:\www\corp\protected\extensions\bootstrap\assets", "C:\www\corp\assets\96296f5a", "", array(), ...)
#5
+
C:\www\yii-1.1.13\framework\web\CAssetManager.php(251): CFileHelper::copyDirectory("C:\www\corp\protected\extensions\bootstrap\assets", "C:\www\corp\assets\96296f5a", array("exclude" => array(".svn", ".gitignore"), "level" => -1, "newDirMode" => 511, "newFileMode" => 438))
#6
–
C:\www\corp\protected\extensions\bootstrap\components\Bootstrap.php(458): CAssetManager->publish("C:\www\corp\protected\extensions\bootstrap\assets", false, -1, true)
453 if (isset($this->_assetsUrl))
454 return $this->_assetsUrl;
455 else
456 {
457 $assetsPath = Yii::getPathOfAlias('bootstrap.assets');
458 $assetsUrl = Yii::app()->assetManager->publish($assetsPath, false, -1, YII_DEBUG);
459 return $this->_assetsUrl = $assetsUrl;
460 }
461 }
462
463 /**
#7
–
C:\www\corp\protected\extensions\bootstrap\components\Bootstrap.php(163): Bootstrap->getAssetsUrl()
158 * #param string $cssFile the css file name to register
159 * #param string $media the media that the CSS file should be applied to. If empty, it means all media types.
160 */
161 public function registerAssetCss($cssFile, $media = '')
162 {
163 Yii::app()->getClientScript()->registerCssFile($this->getAssetsUrl() . "/css/{$cssFile}", $media);
164 }
165
166 /**
167 * Registers the core JavaScript.
168 * #since 0.9.8
#8
–
C:\www\corp\protected\extensions\bootstrap\components\Bootstrap.php(124): Bootstrap->registerAssetCss("bootstrap.css")
119 /**
120 * Registers the Bootstrap CSS.
121 */
122 public function registerCoreCss()
123 {
124 $this->registerAssetCss('bootstrap' . (!YII_DEBUG ? '.min' : '') . '.css');
125 }
126
127 /**
128 * Registers the Bootstrap responsive CSS.
129 * #since 0.9.8
#9
+
C:\www\corp\protected\extensions\bootstrap\components\Bootstrap.php(102): Bootstrap->registerCoreCss()
#10
+
C:\www\yii-1.1.13\framework\base\CModule.php(387): Bootstrap->init()
#11
+
C:\www\yii-1.1.13\framework\base\CModule.php(523): CModule->getComponent("bootstrap")
#12
+
C:\www\yii-1.1.13\framework\base\CApplication.php(152): CModule->preloadComponents()
#13
+
C:\www\yii-1.1.13\framework\YiiBase.php(125): CApplication->__construct("C:\www\corp/protected/config/main.php")
#14
+
C:\www\yii-1.1.13\framework\YiiBase.php(98): YiiBase::createApplication("CWebApplication", "C:\www\corp/protected/config/main.php")
#15
+
C:\www\corp\index.php(13): YiiBase::createWebApplication("C:\www\corp/protected/config/main.php")
2013-02-25 11:29:18 Apache/2.2.22 (Win32) PHP/5.3.13 Yii Framework/1.1.13

Answer 1

The error basically says that YII is not able to copy the required assets from the extensions on to the assets directory at runtime.
The directory C:\www\corp where your YII project exists should be writable by the web server process.
I would see if there is there a firewall/anti-virus that might be blocking the web server from creating files. Try reading the web server log.