org.eclipse.swt.SWTError: Unspecified error Aborting Edge initialization after 5 retries with result -2147024726

[dave1981]

I have updated my Eclipse installation to 2025.09, but I'm constantly getting this error

org.eclipse.swt.SWTError: Unspecified error Aborting Edge initialization after 5 retries with result -2147024726 at org.eclipse.swt.SWT.error(SWT.java:4971) at org.eclipse.swt.browser.Edge.lambda$15(Edge.java:704) at org.eclipse.swt.browser.Edge$HandleCoreWebView2SwtCallback.Invoke(Edge.java:250) at org.eclipse.swt.internal.win32.OS.DispatchMessage(Native Method) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3746) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1151) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:339) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1042) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153) at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:678) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:339) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:583) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:173) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:185) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:219) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:149) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:115) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:467) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:298) at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) at java.base/java.lang.reflect.Method.invoke(Method.java:580) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:627) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:575) at org.eclipse.equinox.launcher.Main.run(Main.java:1431)

Session Data: eclipse.buildId=4.37.0.20250905-1455 java.version=21.0.8 java.vendor=Eclipse Adoptium BootLoader constants: OS=win32, ARCH=x86_64, WS=win32, NL=it_IT Framework arguments: -product org.eclipse.epp.package.java.product Command-line arguments: -os win32 -ws win32 -arch x86_64 -product org.eclipse.epp.package.java.product

I tried:

• reinstall Eclipse
• change default browser
• start eclipse in administrator mode

I have updated the installation on two different computers and on both I get this error repeatedly

[sratz]

What version of Edge WebView2 do you have installed?

You can find this under

HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\EdgeUpdate\Clients\{F3017226-FE2A-4295-8BDF-00C3A9A7E4C5}

or

HKEY_CURRENT_USER\Software\Microsoft\EdgeUpdate\Clients\{F3017226-FE2A-4295-8BDF-00C3A9A7E4C5}

in the registry.

Can you try to install the latest evergreen version from https://developer.microsoft.com/en-us/microsoft-edge/webview2?form=MA13LH#download and see if that helps?

[dave1981]

I have version 141.0.3537.71 I can't install the latest version because it's already installed

[HeikoKlare]

It seems like you have some other application using the WebView2 engine with the same data folder at the same time. The mentioned error code -2147024726 means: "The requested resource is in use."

Can you start your application with a customized data folder, i.e., set the system property org.eclipse.swt.browser.EdgeDataDir according to the FAQ, and see if that helps?

And can you share which Windows version you are using?