title: Install Eclipse for C/C++ in Ubuntu 20.04 LTS Error/Crash on Run
body: <p>I am attempting to install Eclipse for C/C++ manually since the version included in the Ubuntu Software center appears to be for Java development only.  I complete the steps include in the guide linked below.  However when I attempt to launch I receive the below error:</p>
  
  <pre><code>XYZ@ubuntu:~/Downloads$ sudo eclipse
  OpenJDK 64-Bit Server VM warning: Ignoring option MaxPermSize; support was removed in 8.0
  WARNING: An illegal reflective access operation has occurred
  WARNING: Illegal reflective access by org.eclipse.osgi.internal.baseadaptor.BaseStorage (file:/opt/eclipse/plugins/org.eclipse.osgi_3.6.2.R36x_v20110210.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
  </code></pre>
  
  <p>After this warning is displayed Eclipse fails to launch.</p>
  
  <p>Below is the error log entry in Eclipse:</p>
  
  <pre><code>!SESSION 2020-05-07 22:53:03.283 -----------------------------------------------
  eclipse.buildId=M20110210-1200
  java.version=11.0.7
  java.vendor=Ubuntu
  BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US
  Framework arguments:  -product org.eclipse.epp.package.linuxtools.product
  Command-line arguments:  -os linux -ws gtk -arch x86_64 -product org.eclipse.epp.package.linuxtools.product
  
  !ENTRY org.eclipse.equinox.simpleconfigurator 4 0 2020-05-07 22:53:03.668
  !MESSAGE
  !STACK 0
  org.osgi.framework.BundleException: The bundle "org.eclipse.equinox.simpleconfigurator_1.0.200.v20100503 [1]" could not be resolved. Reason: Missing Constraint: Bundle-RequiredExecutionEnvironm&gt;
          at org.eclipse.osgi.framework.internal.core.AbstractBundle.getResolverError(AbstractBundle.java:1317)
          at org.eclipse.osgi.framework.internal.core.AbstractBundle.getResolutionFailureException(AbstractBundle.java:1301)
          at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:319)
          at org.eclipse.osgi.framework.internal.core.AbstractBundle.resume(AbstractBundle.java:374)
          at org.eclipse.osgi.framework.internal.core.Framework.resumeBundle(Framework.java:1067)
          at org.eclipse.osgi.framework.internal.core.StartLevelManager.resumeBundles(StartLevelManager.java:561)
          at org.eclipse.osgi.framework.internal.core.StartLevelManager.resumeBundles(StartLevelManager.java:546)
          at org.eclipse.osgi.framework.internal.core.StartLevelManager.incFWSL(StartLevelManager.java:459)
          at org.eclipse.osgi.framework.internal.core.StartLevelManager.doSetStartLevel(StartLevelManager.java:243)
          at org.eclipse.osgi.framework.internal.core.StartLevelManager.dispatchEvent(StartLevelManager.java:440)
          at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:227)
          at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:337)
  
  !ENTRY org.eclipse.osgi 4 0 2020-05-07 22:53:03.672
  !MESSAGE Bundle initial@reference:file:plugins/org.eclipse.equinox.simpleconfigurator_1.0.200.v20100503.jar/ was not resolved.
  
  !ENTRY org.eclipse.osgi 2 0 2020-05-07 22:53:03.679
  !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 2020-05-07 22:53:03.679
  !MESSAGE Bundle org.eclipse.equinox.simpleconfigurator_1.0.200.v20100503 [1] was not resolved.
  !SUBENTRY 2 org.eclipse.equinox.simpleconfigurator 2 0 2020-05-07 22:53:03.679
  !MESSAGE Missing Constraint: Bundle-RequiredExecutionEnvironment: CDC-1.1/Foundation-1.1,J2SE-1.4
  
  !ENTRY org.eclipse.osgi 4 0 2020-05-07 22:53:03.680
  !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:369)
          at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
          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:620)
          at org.eclipse.equinox.launcher.Main.basicRun(Main.java:575)
          at org.eclipse.equinox.launcher.Main.run(Main.java:1408)
          at org.eclipse.equinox.launcher.Main.main(Main.java:1384)
  </code></pre>
  
  <p>Unfortunately I am both unfamiliar with Java and have had little success in finding a solution online.  Any help would be greatly appreciate. </p>
  
  <p>Guide I used:
  <a href="https://linuxconfig.org/eclipse-ide-for-c-c-developers-installation-on-ubuntu-20-04" rel="nofollow noreferrer">https://linuxconfig.org/eclipse-ide-for-c-c-developers-installation-on-ubuntu-20-04</a></p>