diff --git a/application/models/ISO19115.php b/application/models/ISO19115.php
index 6acc47dd..96fb4311 100755
--- a/application/models/ISO19115.php
+++ b/application/models/ISO19115.php
@@ -371,7 +371,7 @@ class ISO19115
 	function parse()
 	{
 		$this->resTitle=$this->dom->getElementsByTagName('resTitle')->item(0)->nodeValue;
-		$this->resAltTitle=$this->dom->getElementsByTagName('resAltTitle')->item(0)->nodeValue;
+		@$this->resAltTitle=$this->dom->getElementsByTagName('resAltTitle')->item(0)->nodeValue;
 		$this->idAbs=$this->dom->getElementsByTagName('idAbs')->item(0)->nodeValue;
 		$this->mdFileID=$this->dom->getElementsByTagName('mdFileID')->item(0)->nodeValue;
 		$this->mdDateSt=$this->dom->getElementsByTagName('mdDateSt')->item(0)->nodeValue;
@@ -381,7 +381,7 @@ class ISO19115
 		//项目支持信息
 		@$this->suppinfo=$this->dom->getElementsByTagName('suppInfo')->item(0)->nodeValue;
 		//DOI，自定义项
-		$cittype=$this->dom->getElementsByTagName('citIdType')->item(0)->nodeValue;
+		@$cittype=$this->dom->getElementsByTagName('citIdType')->item(0)->nodeValue;
 		if ($cittype=='DOI')
 			$this->doi=$this->dom->getElementsByTagName('citId')->item(0)->nodeValue;
 		//数据大小，以MB为单位
@@ -418,7 +418,7 @@ class ISO19115
 		{
 			$this->author[$cnt+$j]['individual']=$author->getElementsByTagName('rpIndName')->item(0)->nodeValue;
 			$this->author[$cnt+$j]['organisation']=$author->getElementsByTagName('rpOrgName')->item(0)->nodeValue;
-			$this->author[$cnt+$j]['position']=$author->getElementsByTagName('rpPosName')->item(0)->nodeValue;
+			@$this->author[$cnt+$j]['position']=$author->getElementsByTagName('rpPosName')->item(0)->nodeValue;
 			$this->author[$cnt+$j]['delivery']=$author->getElementsByTagName('delPoint')->item(0)->nodeValue;
 			$this->author[$cnt+$j]['phone']=$author->getElementsByTagName('voiceNum')->item(0)->nodeValue;
 			$this->author[$cnt+$j]['email']=$author->getElementsByTagName('eMailAdd')->item(0)->nodeValue;
@@ -434,7 +434,7 @@ class ISO19115
 		{
 			$this->author[$cnt+$m]['individual']=$author->getElementsByTagName('rpIndName')->item(0)->nodeValue;
 			$this->author[$cnt+$m]['organisation']=$author->getElementsByTagName('rpOrgName')->item(0)->nodeValue;
-			$this->author[$cnt+$m]['position']=$author->getElementsByTagName('rpPosName')->item(0)->nodeValue;
+			@$this->author[$cnt+$m]['position']=$author->getElementsByTagName('rpPosName')->item(0)->nodeValue;
 			$this->author[$cnt+$m]['delivery']=$author->getElementsByTagName('delPoint')->item(0)->nodeValue;
 			$this->author[$cnt+$m]['phone']=$author->getElementsByTagName('voiceNum')->item(0)->nodeValue;
 			$this->author[$cnt+$m]['email']=$author->getElementsByTagName('eMailAdd')->item(0)->nodeValue;
@@ -572,8 +572,8 @@ class ISO19115
 		foreach($ds as $k=>$dataset)
 		{
 		  $this->datasetSeries[$k]['seriesName']=$dataset->getElementsByTagName('seriesName')->item(0)->nodeValue;
-		  $this->datasetSeries[$k]['issId']=$dataset->getElementsByTagName('issId')->item(0)->nodeValue;
-		  $this->datasetSeries[$k]['artPage']=$dataset->getElementsByTagName('artPage')->item(0)->nodeValue;
+		  @$this->datasetSeries[$k]['issId']=$dataset->getElementsByTagName('issId')->item(0)->nodeValue;
+		  @$this->datasetSeries[$k]['artPage']=$dataset->getElementsByTagName('artPage')->item(0)->nodeValue;
 		}
 		//unsure which one.
 		$ds=$this->dom->getElementsByTagName('Series');