Data Viewer not working Talend v7

[jftdarr]

OS windows 10 Enterprise

JAVA_HOME:  C:\Program Files (x86)\Talend-Studio\jre1.8.0_131

Talend Version:  7.0.1

Recently my Talend Jobs have started giving me an error when attempting to use data viewer or to guess schemas.  

The error message is:

Preview Error!
Exception in thread "main" java.lang.Error: Unresolved compilation problem:
at collibra_dd.preview_data.Preview_Data.main(Preview_Data.java:1417)

When loading an excel file the preview gets the following error:

Exception in thread "main" java.lang.Error: Unresolved compilation problem:

at collibra_dd.shadowfileinputtodelimitedoutput_0_1.ShadowFileInputToDelimitedOutput.main(ShadowFileInputToDelimitedOutput.java:2165)

Preview error. Some settings must be changed.
Note: Preview errors are generally due to a wrong encoding setting.
org.talend.designer.runprocess.shadow.ShadowFilePreview.preview(ShadowFilePreview.java:90)
org.talend.metadata.managment.ui.utils.ShadowProcessHelper.getCsvArray(ShadowProcessHelper.java:383)
org.talend.repository.ui.wizards.metadata.connection.files.excel.ExcelFileStep2Form$PreviewProcessor.nonUIProcessInThread(ExcelFileStep2Form.java:1042)
org.talend.commons.ui.swt.thread.SWTUIThreadProcessor$1.run(SWTUIThreadProcessor.java:74)

I have followed steps in other discussion threads without any success.  

[manodwhb]

@jftdarr, I believe it could be an issue with Java, please check the java version and below cases.

https://community.talend.com/t5/Design-and-Development/Data-viewer-Not-Working/td-p/35739

https://community.talend.com/t5/Design-and-Development/Talend-throwing-quot-Exception-in-thread-quot...

[jftdarr]

@manodwhb Thank you - I tried again (I have tried those steps a few times in a few different ways and continue to have the same problem).  

[jftdarr · Accepted solution]

Update - I was finally able to resolve the solution by creating a new workspace and migrating the jobs over to the new workspace (after updating JAVA_HOME) and jdk.