In this analogy, your home is the cache even more particular, the desk you’ve put your book on is the cache. You could go to the library to read the book every time you need to reference the text in your paper, or you could borrow the book and take it home with you for faster access. You need to go to the library and read through a book you’ve heard about. Think of cache like this: imagine you’re writing your thesis paper, and you need to research the topic you’re writing about. Once a copy of the website is downloaded and stored, the next time you revisit the same website, it will load faster.Įxamples of data it stores are images, videos, scripts and other technical stuff, resulting in an optimised loading time.įor this reason, the meaning of cache is a collection of items stored in a hidden place. People clear cache, for example, when they want to troubleshoot a website or when they want the newest version of a website.īut what is cache? Well, every time you visit a website like you’re doing just now on one.com, your browser downloads a copy of the website and stores the data on your computer’s hard drive. If you’ve ever heard the phrase clear your history on your computer, you’ve probably also heard the phrase clear your cache. The browser can simply display what it stored last time, instead of having to fetch the website files again. If I had simply realized that the Suite was no longer open and only the Project was, I could have fixed it in three seconds.Website caching means that your browser stores the files of a website you’re visiting, so that it can be accessed quicker on the next visit. I suspect I didn't strictly need to clean out my NetBeans cache at all though perhaps doing so actually fixed the issue of why it was only showing the "Module Project" instead of the "Module Suite Project", thereby doing the right thing when I clicked build clean. This explains why ant build clean worked, since it was done on the command line at the right level to clean the whole Suite. Now that I have the "Module Suite Project" opened correctly again, things work as expected. Building clean cleaned that particular Project correctly, but did not clean the entire Suite. Somehow, my NetBeans "Module Suite Project" (yellow/orange puzzle piece s icon) had been closed and the "Module Project" (purple puzzle piece icon) having the same exact name as the "Module Suite Project" was open. It occurs to me that NetBeans was keeping something open and just needed to be closed in order to delete the folders. When I reopened NetBeans, the problem was resolved. I closed NetBeans, and ran ant build clean at the command line, and it worked. Later, this problem cropped up again with NetBeans 8.1. I had two Project Groups, and had to close each project in both groups, close NetBeans, clear the cache, then add my projects back to my groups before it would work again. The first time I had this problem, Ray Slater's answer above helped me immensely. My problem manifested as running a clean build didn't delete the previous build folder or testuserdir folder, while I was using NetBeans 8.0.2. You might not need to whack your entire NetBeans cache. See this documentation at the NetBeans site: NetBeans 7.2 and newer Users/jdoe/.netbeans/5.0/ (To open this folder in the Finder, choose Go > Go to Folder from the Finder menu, type /Users/jdoe/.netbeans/5.0/ into the box, and click Go.)Ī Linux user jdoe running NetBeans 5.0 is likely to find his userdir under NetBeans 7.1 allows to separate the cache directory using a switch -cachedir to a desired location.Ī Windows user jdoe running NetBeans 5.0 is likely to find his userdir underĬ:\Documents and Settings\beans\5.0\Ī Windows Vista user jdoe running NetBeans 5.0 is likely to find his userdir underĪ Mac OS X user jdoe running NetBeans 5.0 is likely to find his userdir under To find out your exact userdir location, go to the IDE's main menu, and choose Help > About. For each version of NetBeans installed, the userdir will be a unique subdirectory such as. The cachedir can be found in var/cache subfolder of the userdir.Īs the name suggests, the userdir is unique per user. If it is set, you can also use the environment variable %LOCALAPPDATA%: del /s /q %LOCALAPPDATA%\NetBeans\Cache\Ĭache is at: ~/.cache/netbeans/$ on Unix-like systems, and %USERPROFILE% (usually set to C:\Documents and Settings\) on Windows. NetBeans 7.2+, Windows 7Ĭache is located in C:\Users\\AppData\Local\NetBeans\Cache\.Ĭlear the cache using the %USERPROFILE% Windows variable: del /s /q %USERPROFILE%\AppData\Local\NetBeans\Cache\ Close NetBeans before deleting the cache.
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