MyEclipse “Unknown tag warning for jsf tag libraries”
1. Unknown tag warning for jsf tag libraries.
- Using the -clean command line argument when starting up Eclipse can help a lot of strange problems disappear … more
eclipse.exe -clean or, right click the MyEclipse shortcut, Property --> Shortcut Start in: "C:\Users\Sohail\AppData\Local\Genuitec\MyEclipse 7.0\myeclipse.exe" -clean
- If above strategy does not work, create a brand new Web Project using MyEclipse IDE, add JSF capability then add Facelets capabality.
- Create a .xhtml page and add ui composition tag. This should solve it.
2. My Eclipse is too damn slow.
- Create project in local drive and do compile and run instead of running of network drive.
- You can go to Windows > Preferences > General > Capabilities > Advanced and disable the capabilities that you are not using. That would enhance the performance of the IDE.
3. How do I know what version of java MyEclipse IDE is using.
- MyEclipse –> Install Summary …
- MyEclipse –> Examples On-Demand … (pretty cool)
4. How to see warning and error details?
- Windows –>Show View –> Problems
5. No grammar constraints (DTD or XMl schema) detected for the document.
- Window > Preferences > MyEclipse > Files and Editors > XML and select “Indicate when no grammar is specified” = Ignore.
6. java.lang.UnsupportedClassVersionError: Bad version number in .class file
- Downloaded Eclipse 7.1 and started getting above error even though I have successfully completed unit testing for all methods. MyEclipse IDE 7.1 by default runs on java 1.5. I needed to run my project on java 1.6.
*** Date: Friday, April 3, 2009 7:56:14 PM CDT ** System properties: OS=WindowsXP OS version=5.1.0 Java version=1.5.0_11
I have changed the default JDK Compliance level to 1.6 by going as follows:
Windows –> Preferences –> Java –> Compiler
I have also added Maven JDK to 1.6, Windows –> Preferences –> MyEclipseEnterprise Workbench –> Maven4MyEclipse –> Maven.
But I have forgot this following step:
Right click on the project –> Properties –> Java Build Path then click Order and Export tab and click JRE System Library [jre-6] checkbox.
Suggestion: Close and start the IDE after make any configuration changes also help to clean cache data. In order to run the project you need to add a server and JDK (not jre) home. Windows –> Preferences –> Servers –> Glassfish 2.x –> JDK
7.
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About
I am the Obi-Wan, the master of jedi. I am also a Software Engineer in Oklahoma City. My expertise is in Java EE, object-oriented application development, and use of open source frameworks. I primarily work on the design and development phases of Java EE applications. I have been with my current job for about six years and I have a degree in computer science.
In this blog I will be posting issues about JSF, Facelets, Ajax, Spring, JPA, Portal, Web Services, GlassFish App Server and anything Java EE related technologies those I use to deliver contents over the browser. I will be concentrating my difficult moments during development phases and how I tackle those issues to perform my daily job. Click here to read NASE Glassfish application server success story.
Please feel free to make comments and suggestions and here are some of my favorite quotes:
“I Hear and I Forget, I See and I Remember, I Do and I Understand” – Unknown
“It’s not the length of life, but depth of life” — Ralph Waldo Emrson
“We cannot change the cards we are dealt, just how we play the hand.” – Randy Pausch
“Pride comes before the fall.” — Hebrew proverb
It’s the little things in life that brings the greatest happiness — Unknown
“Part of being a good friend is being honest.” — President Obama
Happy coding and May the Force be with you.
HobiOne (Hobi HaQue)
Oklahoma, USA
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