http error 500 BIRT 4_2.2

Hello everyone, 
 
 Recently I installed Windows 8.1 and now my BIRT version 4_2.2 is giving me an error. The error is: 
 
"
<div>HTTP ERROR: 500</div>
<div>Problem accessing /viewer/preview. Reason: </div>
<div> </div>
<div> Plug-in "org.eclipse.birt.report.viewer" was unable to instantiate class "org.eclipse.birt.report.servlet.BirtEngineServlet".</div>
<div> </div>
<div>

</div>
<div>Powered by Jetty:// </div>
"
 
Any ideas? Any suggestions to have BIRT running agian? I have searched online for simmilar problems and no luck on my end.

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Clement Wong

So after you installed Windows 8.1, you installed BIRT 4.2.2? Did you try re-installing BIRT 4.2.2 using another downloaded ZIP from Eclipse.org? Or another version of BIRT?
 
After you launch Eclipse/BIRT Designer, and can you check under the menu option Help > About Eclipse > Installation Details > Plug-ins (tab), and look for Provider = Eclipse BIRT Project, Plug-in Name = BIRT Web Viewer. What is your Version? What is Plug-in Id?
 
What version of Java are you running with BIRT 4.2.2? You can verify by checking under the menu option Help > About Eclipse > Installation Details > Configuration (tab). Look for entries such as:
 
java.runtime.name=Java(TM) SE Runtime Environment 
java.runtime.version=1.8.0_111-b14 
java.specification.name=Java Platform API Specification 
java.specification.vendor=Oracle Corporation 
java.specification.version=1.8 
java.vendor=Oracle Corporation 
java.vendor.url=<a data-ipb='nomediaparse' href='http://java.oracle.com/'>http://java.oracle.com/</a> 
java.vendor.url.bug=<a data-ipb='nomediaparse' href='http://bugreport.sun.com/bugreport/'>http://bugreport.sun.com/bugreport/</a> 
java.version=1.8.0_111 
java.vm.info=mixed mode 
java.vm.name=Java HotSpot(TM) 64-Bit Server VM 
java.vm.specification.name=Java Virtual Machine Specification 
java.vm.specification.vendor=Oracle Corporation 
java.vm.specification.version=1.8 
java.vm.vendor=Oracle Corporation 
java.vm.version=25.111-b14

inoplaneteanku

Hello Clement, 
 
 Thank you for taking time to reply to my concerns. 
 
 First I installed Windows 8.1 and then BIRT. I did not tryied a new version of BIRT since this version worked just fine on Windows 7 - it seems like I may have to try a new version. 
 
In BIRT Report Designer Installation Details I have:
Provider: Eclipse BIRT Project;
Plug-in Name: BIRT Web Viewer
Version: 4.2.2.v201302041142
Plug-in ID: org.eclipse.birt.report.viewer
 
As far as Java goes, I have: 
 
<div>java.runtime.version=1.8.0_121-b13</div>
<div>java.vm.version=25.121-b13</div>
<div> </div>
Again, thank you for your help.

Clement Wong

Things to try:
 
1. Change the default internal browser that Eclipse uses to view to an external browser: Step 1 General > Web Browser > Use External Web Browser 
Add a new browser pointing to Chrome, or Firefox. Step 2 
OS BIRT: Report Design > Preview > Always use external browsers 
Commercial BIRT: OpenText BIRT > Preview > Always use external browsers
 
 
2. Use Java 7 instead of Java 8