Workbench User Guide Eclipse platform overview Getting started Basic tutorial The Workbench Editors and views Editors Views. If you missed today’s solar eclipse, fear not, there will be plenty more to come. And some that will be a lot more fun to watch. Consider this your future solar. Eclipse is probably best known as a Java IDE, but it is more: it is an IDE framework, a tools framework, an open source project, a community, an eco-system, and a. An Eclipse RCP application is a stand-alone application based on Eclipse platform technologies. This tutorial uses the terms Eclipse based applications, Eclipse. ![]() Eclipse "cannot be resolved to a type" error. So I’m coding along and all of a sudden, Eclipse (3. Classes that are in the same package as the class I’m editing. Classes that are fully qualified in the import statement. Not good. The last thing I had done was add a Spring @Autowired annotation. I saved the file and voila, everything goes to crap. I then spend a stupid amount of time trying to track down the cause. I took the changes out. I did a clean and rebuild and retest (everything passed; this was Eclipse- only). I added new classes to see if they broke (they did). I did a false modify (add space, remove space, save) to see if that broke said file (it did). It was a death spiral. No matter how I changed the code, the same problem was there. Turns out, it wasn’t the annotation, or anything else in Spring, or any of my code, or any of my Eclipse plugins. It was a step before that killed me. I was doing a little cleanup and I created a temp directory at the top of my project folder so I could move some files there. It wasn’t nested in anything, other than the top level directory. What could go wrong? Apparently, that makes Eclipse see red. Squiggly red. The solution was simply to do a refresh (F5) on my project. ![]() Just as quickly as it started, the problem went away. That smells like a bug to me, but if it was I figure I’d see a lot more mentions in Google or the Eclipse bug tracker. I’m really hoping this helps someone save some time. Update: If that doesn’t work, try: Clean, refresh, build, restart. Also, remember any external build/clean scripts you might be using. For instance, Grails has a command line “clean” you may have to invoke. Same if you have Ant or Maven builds. David Resnick (comment below) discovered this tip for those with an external build script: Windows–> Preferences–> Java–> Compiler–> Building–> Output folder–> ”Rebuild class files modified by others”. This exists in Eclipse 3. I’m not sure about earlier versions. Another issue I’ve found over the years is problems when upgrading Eclipse. In theory, new versions of Eclipse should update your workspace and project files just fine. In practice, they can become corrupted. My new rule is to create a new workspace for every major version upgrade of Eclipse (maybe more often if you’re cautious). Then I copy those projects and import the copy. This ensures I have a backup plan should something go awry. You may need to reimport your project(s) if there’s a problem that won’t go away after an upgrade. Many commenters offered other solutions, so check below. Thanks to those who contributed them! Update: I switched to Intelli. J. Click that link for details why, it’s not the usual hand- wavy “it’s just so much better” that never got me to switch. Not saying it’s bug free, but nothing is, and I’ve never seen errors like this there. Keywords: false error, bogus error, eclipse bug. Find. Bugs Eclipse plugin update site. This web page provides automatic distribution. Eclipse plugin for Find. Bugs. Plugin requirements. This plugin has primarily been tested with Eclipse 3. It should work with 3. The plugin is not compatible with versions of Eclipse preceding 3. The plugin runs under Java 1. Plugin installation. If you have previously installed a version of the Find. Bugs plugin. prior to mid- May, 2. Simply remove the de. Eclipse's plugins directory. To install the Find. Bugs plugin. In Eclipse, click on Help - > Software Update - > Find and Install.. Choose the Search for new features to install option, and click Next. Click New Remote Site. Enter the following: Name: Find. Bugs update site URL: one of the following (note: no final slash on the url). Find. Bugs update site" should appear under Sites to include in search. Click the checkbox next to it to select it, and click Finish. You should see Find. Bugs Feature under Select features to install. You may have to click on one or two triangles to make it visible in the tree.)Select the checkbox next to it and click next. Select the I accept option to accept the license and click Next. Make sure the location is correct where you're installing it. The default (your workspace) should be fine. Click Finish. The plugin is not digitally signed. Go ahead and install it anyway. Click Yes to make Eclipse restart itself.
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November 2017
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