Application Error Code Cannot Be Resolved To A Type
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Cannot Be Resolved To A Type Error In Eclipse
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you, helping each other. Join them; it only takes a minute: Sign up Why I got “ cannot be resolved to a type” error? up vote 8 down vote favorite I am developing a dynamic web project (RESTful jersey) under Eclipse IDE. Under src/my/demo/service folder I have CarService.java class public class CarService { ... } Under src/my/demo/controller mapactivity cannot be resolved to a type folder I have UserController.java class import my.demo.service.CarService; public class UserController{ private CarService carService; //ERROR: CarServcie cannot be resolved to a type } I do have imported the CarService, why eclipse give me the error "CarServcie cannot be resolved to a type" in my UserController.java? --------Edit------------------ I found the cause: for some reason, my.demo.service has the same level as src/ in eclise project explorer view. After I move my.demo.service under src/, it is fine. Seems I should not create new package in "Project Explorer" view in Eclipse... But thank you for your response:) java eclipse share|improve this question edited Apr 7 '11 at 15:07 Reddy 4,07653757 asked Apr 7 '11 at 10:22 Mellon 9,71246139225 Does the CarService class belong to the package my.demo.service, and not just the folder? –Andreas Johansson Apr 7 '11 at 10:25 add a comment| 5 Answers 5 active oldest votes up vote 22 down vote u just need go to Project ---> clean See http://philip.yurchuk.com/2008/12/03/eclipse-cannot-be-resolved-to-a-type-error/ share|improve this answer answered Mar 8 '13 at
resolve classes. 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
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had done was add a Spring @Autowired annotation. I saved the file and voila,
String Cannot Be Resolved To A Type
everything goes to crap. I then spend a stupid amount of time trying to track down the cause. I took javax.servlet.jsp.jspexception cannot be resolved to a type 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, http://stackoverflow.com/questions/5579558/why-i-got-cannot-be-resolved-to-a-type-error 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 http://philip.yurchuk.com/software/eclipse-cannot-be-resolved-to-a-type-error/ 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 3.5; 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. M
CommunityMarketplaceEventsPlanet EclipseNewsletterVideosParticipateReport a BugForumsMailing ListsWikiIRCHow to ContributeWorking GroupsAutomotiveInternet of ThingsLocationTechLong-Term SupportPolarSysScienceOpenMDM Toggle navigation Bugzilla – Bug106446 [compiler] "Cannot be resolved to a type" errors for some default top-level class Last modified: 2006-06-09 15:19:40 EDT Home | New | Browse | Search | [?] | Reports | Requests | Help | Log https://bugs.eclipse.org/bugs/show_bug.cgi?id=106446 In [x] | Forgot Password Login: [x] | Terms of Use | Copyright Agent First Last Prev Next This bug is not in your last search results. Bug106446 - [compiler] "Cannot be resolved to a type" errors for some default top-level class Summary: [compiler] "Cannot be resolved to a type" errors for some default top-level c... Status: VERIFIED FIXED Product: JDT Classification: Eclipse Component: Core cannot be Version: 3.1 Hardware: PC Windows XP Importance: P3 normal with 1 vote (vote) TargetMilestone: 3.2 M6 Assigned To: Kent Johnson QA Contact: URL: Whiteboard: Keywords: Duplicates: 126999 (view as bug list) Depends on: Blocks: Show dependency tree Reported: 2005-08-09 05:22 EDT by Patrick Brühlmann Modified: 2006-06-09 15:19 EDT (History) CC List: 3 users (show) dramage franklinm sulfinu See Also: Attachments Add an attachment (proposed patch, cannot be resolved testcase, etc.) Note You need to log in before you can comment on or make changes to this bug. Description Patrick Brühlmann 2005-08-09 05:22:45 EDT We have a big java project with some source files containing a public class and one or several "default" top-level classes (inherited from the public one). - Java editor shows unresolved error where these default classes are used if the source file where these classes are defined is not also opened. (seems to be a known problem, see bug 87063,92486) - With the option "build automatically", Eclipse shows for some (not all) of these classes, the following error :