myecplise上将工程部署到应用下时,经常出现 An internal error occurred during: "Add Deployment". java.lang.NullPointEx
2013-08-24 12:36
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myecplise上将工程部署到应用下时,经常出现 An internal error occurred during: "Add Deployment". java.lang.NullPointException 错误。很让人郁闷。
究其原因,一般是因为项目从别处导入的,从cvs上down下来的等。
原因一、jdk版本不一致。具体步骤如下:
右键项目名→Properties→Java Build Path→Libraries→选中JRE System Library[Sun JDK 1.6.0_13]→Edit→选中“Workspace default JRE(Sun JDK 1.6.0_13)”→Finish
以上是以你本地JDK版本为主
原因二,也是出问题最频繁的地方:工程下的.mymetadata文件内容与原项目不一致。这里可能有<project-module 中缺少context-root 属性设置,也可能<attribute 中value属性值不对。所以需要原项目的配置文件对照一下。或者尝试着给value设置不同值,每次设置修改后,需要重启myeclipse。 value的值大概有WebRoot,webapp,<prjroot> 等
给一个配置示例:
<?xml version="1.0" encoding="UTF-8"?>
<project-module
type="WEB"
name="COA"
id="myeclipse.1291700036453"
j2ee-spec="1.4"
context-root="/COA"
archive="CRM.war">
<attributes>
<attribute name="webrootdir" value="<prjroot>" />
</attributes>
</project-module>
究其原因,一般是因为项目从别处导入的,从cvs上down下来的等。
原因一、jdk版本不一致。具体步骤如下:
右键项目名→Properties→Java Build Path→Libraries→选中JRE System Library[Sun JDK 1.6.0_13]→Edit→选中“Workspace default JRE(Sun JDK 1.6.0_13)”→Finish
以上是以你本地JDK版本为主
原因二,也是出问题最频繁的地方:工程下的.mymetadata文件内容与原项目不一致。这里可能有<project-module 中缺少context-root 属性设置,也可能<attribute 中value属性值不对。所以需要原项目的配置文件对照一下。或者尝试着给value设置不同值,每次设置修改后,需要重启myeclipse。 value的值大概有WebRoot,webapp,<prjroot> 等
给一个配置示例:
<?xml version="1.0" encoding="UTF-8"?>
<project-module
type="WEB"
name="COA"
id="myeclipse.1291700036453"
j2ee-spec="1.4"
context-root="/COA"
archive="CRM.war">
<attributes>
<attribute name="webrootdir" value="<prjroot>" />
</attributes>
</project-module>
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