用什么都会有坑啊，金遇到kettle的一个坑，错误提示如下
2017/10/17 15:46:09 - Spoon - 日志级别 : 调试2017/10/17 15:46:10 - General - ERROR (version 6.1.0.1-196, build 1 from 2016-04-07 12.08.49 by buildguy) : Error starting Spoon shell2017/10/17 15:46:10 - General - ERROR (version 6.1.0.1-196, build 1 from 2016-04-07 12.08.49 by buildguy) : java.lang.RuntimeException: Unable to create the database cache: 2017/10/17 15:46:10 - General - 2017/10/17 15:46:10 - General - Couldn‘t read the database cache2017/10/17 15:46:10 - General - org.pentaho.di.core.exception.KettleFileException: 2017/10/17 15:46:10 - General - 2017/10/17 15:46:10 - General - : Unable to read row metadata from input stream2017/10/17 15:46:10 - General - 2017/10/17 15:46:10 - General - Unable to locate value meta plugin of type (id) 1310722017/10/17 15:46:10 - General - 2017/10/17 15:46:10 - General - 2017/10/17 15:46:10 - General - 2017/10/17 15:46:10 - General - Unable to locate value meta plugin of type (id) 1310722017/10/17 15:46:10 - General - 2017/10/17 15:46:10 - General - 2017/10/17 15:46:10 - General - 2017/10/17 15:46:10 - General - org.pentaho.di.core.exception.KettleFileException: 2017/10/17 15:46:10 - General - 2017/10/17 15:46:10 - General - : Unable to read row metadata from input stream2017/10/17 15:46:10 - General - 2017/10/17 15:46:10 - General - Unable to locate value meta plugin of type (id) 1310722017/10/17 15:46:10 - General - 2017/10/17 15:46:10 - General - 2017/10/17 15:46:10 - General - 2017/10/17 15:46:10 - General - Unable to locate value meta plugin of type (id) 1310722017/10/17 15:46:10 - General - 2017/10/17 15:46:10 - General - 2017/10/17 15:46:10 - General - 2017/10/17 15:46:10 - General - at org.pentaho.di.core.DBCache.getInstance(DBCache.java:247)2017/10/17 15:46:10 - General - at org.pentaho.di.ui.spoon.Spoon.loadSettings(Spoon.java:7225)2017/10/17 15:46:10 - General - at org.pentaho.di.ui.spoon.Spoon.init(Spoon.java:787)2017/10/17 15:46:10 - General - at org.pentaho.di.ui.spoon.Spoon.createContents(Spoon.java:9235)2017/10/17 15:46:10 - General - at org.eclipse.jface.window.Window.create(Window.java:426)2017/10/17 15:46:10 - General - at org.eclipse.jface.window.Window.open(Window.java:785)2017/10/17 15:46:10 - General - at org.pentaho.di.ui.spoon.Spoon.start(Spoon.java:9266)2017/10/17 15:46:10 - General - at org.pentaho.di.ui.spoon.Spoon.main(Spoon.java:662)2017/10/17 15:46:10 - General - at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)2017/10/17 15:46:10 - General - at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)2017/10/17 15:46:10 - General - at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)2017/10/17 15:46:10 - General - at java.lang.reflect.Method.invoke(Method.java:483)2017/10/17 15:46:10 - General - at org.pentaho.commons.launcher.Launcher.main(Launcher.java:92)stoppingJava HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=256m; support was removed in 8.0
解决方法：
To fix the issue, you need to delete the db.cache file.
On my Windows computer, it’s located under C:\Users\patlaf\.kettle\db.cache-5.0.1-stable .
Then you can start Spoon again!
References:
- http://forums.pentaho.com/showthread.php?96065-Spoon-Unable-to-create-the-database-cache
- http://forums.pentaho.com/showthread.php?166068-Unable-to-create-the-database-cache
出自：http://www.patlaf.com/pentaho-spoon-java-lang-runtimeexception-unable-to-create-the-database-cache/
Unable to locate value meta plugin of type (id)
原文地址：http://www.cnblogs.com/chenminklutz/p/7682712.html