# Netbeans 报错 “Not found bundle:com.xxx.xxx in NetBeans xxxx”

今天玩儿Netbeans开发版时遇到了这个错误。具体症状是在启动Netbeans, Splash尚未消失时弹窗：“无法安装某些模块……”，后面紧接着一堆包名：

```
Warning - could not install some modules: org.apache.commons.logging - org.netbeans.InvalidException: Netigso: /Applications/NetBeans/NetBeans 7.3.app/Contents/Resources/NetBeans/ide/modules/org-apache-commons-logging.jar: Not found bundle:org.apache.commons.logging org.apache.ws.commons.util - org.netbeans.InvalidException: Netigso: /Applications/NetBeans/NetBeans 7.3.app/Contents/Resources/NetBeans/ide/modules/org-apache-ws-commons-util.jar: Not found bundle:org.apache.ws.commons.util org.apache.commons.io - org.netbeans.InvalidException: Netigso: /Applications/NetBeans/NetBeans 7.3.app/Contents/Resources/NetBeans/ide/modules/org-apache-commons-io.jar: Not found bundle:org.apache.commons.io org.apache.commons.codec - 
```

目前来看，此错误可能有两种原因。出现较多的也就是网上很容易搜到的原因是JDK路径设置不对（没有自动搜索到，也没有手动指定）：
```
I had this problem today. Solution is very simply: reinstall NetBeans and when installation manager will ask JDK path, set path to one of your JDK (use selector in menu). Default path "/usr/" or other which IDE set automatically is not actual and after installation you'll cann't change default path!
```
解决方法是在`netbeans.conf`文件中设置正确的`JDK`路径，或者重装时指定。

然而，还有一种（可能是Mac特有的）错误形式：[缓存混乱导致](http://blastar.biz/2014/09/25/quick-tip-not-found-bundlecom-jcraft-jzlib-in-netbeans-8-0-1/)：

```
Quick tip: Not found bundle:com.jcraft.jzlib in NetBeans 8.0.1

If you experience errors like:
Not found bundle:com.jcraft.jzlib
when starting NetBeans 8.0.1 just delete cache folder which is located at:
/Users/jdoe/Library/Caches/NetBeans/
where jdoe is your username
```

解决方法是删掉`/Users/用户名/Library/Caches/NetBeans/`目录。相信Window版应该也有类似的缓存目录。