after 10.7 upgrade, WebView won't start

Document ID : KB000111044
Last Modified Date : 14/08/2018
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Issue:
upgraded from 10.5.1.8 to 10.7.0.45 and everything was successful and started fine except for webview.
get the following in the IntroscopeWebview.log file. !SESSION 2018-08-11 02:03:14.937 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_112 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -product com.wily.introscope.webview.server.product Command-line arguments: -consolelog -product com.wily.introscope.webview.server.product !ENTRY org.eclipse.osgi 4 0 2018-08-11 02:03:15.264 !MESSAGE Application error !STACK 1 java.lang.IllegalStateException: Unable to acquire application service. Ensure that the org.eclipse.core.runtime bundle is resolved and started (see config.ini). at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:74) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:386) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:549) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:504) at org.eclipse.equinox.launcher.Main.run(Main.java:1236) at org.eclipse.equinox.launcher.Main.main(Main.java:1212) at org.eclipse.core.launcher.Main.main(Main.java:30) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at com.zerog.lax.LAX.launch(Unknown Source) at com.zerog.lax.LAX.main(Unknown Source)
Resolution:
copied /product/webview/ items from working to not working Webview machine. Also copied "WVCtrl.sh" and "IntroscopeWebView.properties" from working to not working Webview machine. clear product cache and now webview on MOM is working good.