Eclipse 2019-09无法启动问题求助

Hey there, let’s work through this Eclipse startup issue together. You’ve already tried some standard fixes like deleting the .metadata folder and running eclipse -clean, so let’s dive into more targeted solutions tailored to your setup (Java 11.0.8 64-bit, Eclipse on C drive):

• Verify Eclipse-Java 11 Compatibility
  Not all Eclipse versions support Java 11 out of the box. Make sure your Eclipse build is 2019-03 (4.11) or newer—older releases might have compatibility gaps. You can check your Eclipse version by looking at the eclipse.ini file or the About dialog (if you ever get it to launch). If it’s outdated, grab a compatible version from the official Eclipse downloads page.

• Force Eclipse to Use Your Installed JDK
  Sometimes Eclipse picks up a different JVM (like a 32-bit version or an older Java runtime) even if you have Java 11 installed. Fix this by editing the eclipse.ini file in your Eclipse installation directory:

  1. Open eclipse.ini with Notepad or a text editor.
  2. Add these two lines right before the -vmargs line (replace the path with your actual Java 11 installation folder):

     -vm
     C:\Program Files\Java\jdk-11.0.8\bin\javaw.exe
     

  3. Save the file and restart Eclipse.

• Resolve C Drive Permission Restrictions
  Windows UAC (User Account Control) often restricts write access to the C drive, which Eclipse needs for metadata and configuration files. Try these steps:

  1. Right-click the Eclipse shortcut/exe and select Run as administrator. If this works, set this as a permanent setting:
     • Right-click the Eclipse icon → Properties → Compatibility tab.
     • Check Run this program as an administrator and click Apply.
  2. Alternatively, move your Eclipse installation to a non-system drive (like D:\ or E:) to avoid permission issues entirely. Just re-extract the zip file to the new location and launch from there.

• Try a More Thorough Clean Startup
  The standard eclipse -clean might not clear all cached state. Open Command Prompt, navigate to your Eclipse installation directory, and run:

  eclipse -clean -clearPersistedState
  

  This will wipe more cached plugin and configuration data, which can resolve hidden conflicts.

• Analyze the Log File for Clues
  Open the log file yourself and look for key error messages like:

  • java.lang.UnsupportedClassVersionError: Indicates a version mismatch between Eclipse and Java.
  • java.io.FileNotFoundException or Permission denied: Points to write access issues.
  • org.eclipse.e4.core.di.InjectionException: Often related to corrupted plugin state.
    Sharing the specific error snippet will help narrow down the problem further if the above steps don’t work.

内容的提问来源于stack exchange，提问作者abhijeet gupta