Successfully installed, but receive an error message when opening

[akfrey171]

This is the error message which appears after I click on "Vega" (finding it by typing into search). The application fails to open, and this is the only window which appears instead, detailing the following message:

An error has occurred. See the log file
/home/aquila/.eclipse/com.subgraph.vega.application.product_1.0.0.201410142137_878987587/configuration/1634757865628.log

[akfrey171]

This is the output of the log file:

!SESSION 2021-10-20 15:23:19.090 -----------------------------------------------
eclipse.buildId=unknown
java.version=11.0.12
java.vendor=Debian
BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US
Command-line arguments: -os linux -ws gtk -arch x86_64

!ENTRY org.eclipse.equinox.simpleconfigurator 4 0 2021-10-20 15:23:20.011
!MESSAGE FrameworkEvent ERROR
!STACK 0
org.osgi.framework.BundleException: The bundle "org.eclipse.equinox.simpleconfigurator_1.0.300.v20110815-1744 [1]" could not be resolved. Reason: Missing Constraint: Bundle-RequiredExecutionEnvironment: CDC-1.1/Foundation-1.1,J2SE-1.4
at org.eclipse.osgi.framework.internal.core.AbstractBundle.getResolverError(AbstractBundle.java:1332)
at org.eclipse.osgi.framework.internal.core.AbstractBundle.getResolutionFailureException(AbstractBundle.java:1316)
at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:323)
at org.eclipse.osgi.framework.internal.core.AbstractBundle.resume(AbstractBundle.java:390)
at org.eclipse.osgi.framework.internal.core.Framework.resumeBundle(Framework.java:1177)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.resumeBundles(StartLevelManager.java:559)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.resumeBundles(StartLevelManager.java:544)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.incFWSL(StartLevelManager.java:457)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.doSetStartLevel(StartLevelManager.java:243)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.dispatchEvent(StartLevelManager.java:438)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.dispatchEvent(StartLevelManager.java:1)
at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:340)

!ENTRY org.eclipse.osgi 4 0 2021-10-20 15:23:20.020
!MESSAGE Bundle initial@reference:file:plugins/org.eclipse.equinox.simpleconfigurator_1.0.300.v20110815-1744.jar was not resolved.

!ENTRY org.eclipse.osgi 2 0 2021-10-20 15:23:20.030
!MESSAGE One or more bundles are not resolved because the following root constraints are not resolved:
!SUBENTRY 1 org.eclipse.osgi 2 0 2021-10-20 15:23:20.030
!MESSAGE Bundle initial@reference:file:plugins/org.eclipse.equinox.simpleconfigurator_1.0.300.v20110815-1744.jar was not resolved.
!SUBENTRY 2 org.eclipse.equinox.simpleconfigurator 2 0 2021-10-20 15:23:20.030
!MESSAGE Missing required capability Require-Capability: osgi.ee; filter="(|(&(osgi.ee=CDC/Foundation)(version=1.1))(&(osgi.ee=JavaSE)(version=1.4)))".

!ENTRY org.eclipse.osgi 2 0 2021-10-20 15:23:20.032
!MESSAGE The following is a complete list of bundles which are not resolved, see the prior log entry for the root cause if it exists:
!SUBENTRY 1 org.eclipse.osgi 2 0 2021-10-20 15:23:20.032
!MESSAGE Bundle org.eclipse.equinox.simpleconfigurator_1.0.300.v20110815-1744 [1] was not resolved.
!SUBENTRY 2 org.eclipse.equinox.simpleconfigurator 2 0 2021-10-20 15:23:20.032
!MESSAGE Missing required capability Require-Capability: osgi.ee; filter="(|(&(osgi.ee=CDC/Foundation)(version=1.1))(&(osgi.ee=JavaSE)(version=1.4)))".

!ENTRY org.eclipse.osgi 4 0 2021-10-20 15:23:20.033
!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:353)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:180)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:629)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:584)
at org.eclipse.equinox.launcher.Main.run(Main.java:1438)
at org.eclipse.equinox.launcher.Main.main(Main.java:1414)

[akfrey171]

When running from terminal, this is my output:

└─$ ./Vega 127 ⨯
Picked up _JAVA_OPTIONS: -Dawt.useSystemAAFontSettings=on -Dswing.aatext=true
OpenJDK 64-Bit Server VM warning: Ignoring option PermSize; support was removed in 8.0
OpenJDK 64-Bit Server VM warning: Ignoring option MaxPermSize; support was removed in 8.0
Gtk-Message: 16:23:21.342: Failed to load module "gail"

** (Vega:1722598): WARNING **: 16:23:21.358: (../atk-adaptor/bridge.c:1018):atk_bridge_adaptor_init: runtime check failed: (root)
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.eclipse.osgi.internal.baseadaptor.BaseStorage (file:/usr/share/vega/plugins/org.eclipse.osgi_3.8.0.v20120529-1548.jar) to method java.net.URLClassLoader.addURL(java.net.URL)
WARNING: Please consider reporting this to the maintainers of org.eclipse.osgi.internal.baseadaptor.BaseStorage
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Gtk-Message: 16:23:21.968: Failed to load module "gail"

** (Vega:1722597): WARNING **: 16:23:21.982: (../atk-adaptor/bridge.c:1018):atk_bridge_adaptor_init: runtime check failed: (root)

[brianreinhold]

This project has not been updated in years and needs Java 8. If your Java version is newer than that you will get that error dialog. At least I did. My Java version default is 11. There is no option in this app to select a jdk, at least I could not find any. I had to go though loops and hoops with my environment variables to get the default to be 8 instead of 11.
This site helped me: https://www.happycoders.eu/java/how-to-switch-multiple-java-versions-windows/
It is for Windows. But once I had Java 8 the program ran. From the error message it is not obvious that it is the reason.