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Posted to issues@hop.apache.org by "jballment (via GitHub)" <gi...@apache.org> on 2026/08/12 06:04:19 UTC

[I] [Bug]: Hop GUI will not start - SWT Error (hop)

jballment opened a new issue, #7910:
URL: https://github.com/apache/hop/issues/7910

   ### Apache Hop version?
   
   2.19.0-SNAPSHOT
   
   ### Java version?
   
   OpenJDK Runtime Environment (build 21.0.2+13-58)
   
   ### Operating system
   
   Windows
   
   ### What happened?
   
   On Windows 11 Enterprise that has been virtualised as a Citrix VDI, I get the following error trying to start hop-gui.bat:
   
   `Error starting the Hop GUI: monitor-specific scaling is only implemented for auto-scale values "quarter", "exact", but "false" has been specified
   org.eclipse.swt.SWTError: monitor-specific scaling is only implemented for auto-scale values "quarter", "exact", but "false" has been specified
           at org.eclipse.swt.internal.DPIUtil.updateAutoScaleValue(DPIUtil.java:118)
           at org.eclipse.swt.internal.DPIUtil.<clinit>(DPIUtil.java:106)
           at org.eclipse.swt.widgets.Display.retrieveDefaultIconSize(Display.java:537)
           at org.eclipse.swt.widgets.Display.<clinit>(Display.java:534)
           at org.apache.hop.ui.hopgui.HopGui.setupDisplay(HopGui.java:1030)
           at org.apache.hop.ui.hopgui.HopGui.main(HopGui.java:418)`
   
   I found that within PowerShell if I run the following, hop-gui will start:
   
   `$Env:HOP_OPTIONS="-Xmx2048m -Dswt.autoScale=quarter" 
   hop-gui.bat`
   
   
   ### Issue Priority
   
   Priority: 3
   
   ### Issue Component
   
   Component: Hop Gui


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Re: [I] [Bug]: Hop GUI will not start - SWT Error (hop)

Posted by "hansva (via GitHub)" <gi...@apache.org>.
hansva closed issue #7910: [Bug]: Hop GUI will not start - SWT Error
URL: https://github.com/apache/hop/issues/7910


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Re: [I] [Bug]: Hop GUI will not start - SWT Error (hop)

Posted by "hansva (via GitHub)" <gi...@apache.org>.
hansva commented on issue #7910:
URL: https://github.com/apache/hop/issues/7910#issuecomment-5264739011

   You grabbed the snapshot version one build too soon, this should be fixed with https://github.com/apache/hop/pull/7889


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