How to clear the cache in NetBeans

Question

I created a project in NetBeans  and I would like to clear the NetBeans cache   I m running NetBeans 7 0 1 on a Windows 7 machine   How do I do this

User · Answer

For Netbeans 7 4 and above in Linux  the cache is  HOME  cache netbeans 7 4

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Just install cache eraser plugin  it is compatible with nb6 9  7 0 7 1 7 2 and 7 3  To configure the plugin you have to provide the cache dir which is in netbean s about screen  Then with Tools- erase cache  you clear the netbeans cache  That is all  good luck   http   plugins netbeans org plugin 40014 cache-eraser

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In Window 7 the cache is located at C  Users USERNAME AppData Local NetBeans Cache

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On a Mac with NetBeans 8 1    NetBeans   About Find  User Directory path in the About screen rm -fr 8 1 In your case the version could be different  remove the right version folder  Reopen NetBeans

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The cache is C  Users userName AppData Local NetBeans Cache   and then the version name of the folder will specify the correct cache   You can also do this  Close the IDE  Instead  of deleting files and risking everything  rename this cache folder  Now start the IDE  Once it starts  a new cache folder will be created since the folder is not found  Now you can delete the renamed folder safely

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For NetBeans 8  on Windows nbsp 10 there s a definitive bug with duplicate classes error which is being solved by cleaning the cache at  C  Users  lt user gt  AppData Local NetBeans Cache

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I have tried this UserName radhason C  Users radhason AppData Local NetBeans Cache  Press Ok button   then cache folder will be shown and delete this cache folder of netbeans

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I ll just add that I have tried to resolve reference problems caused by a missing library in the cache  and deleting the cache was not enough to solve the problem   I closed NetBeans  7 2 1   deleted the cache  then reopened NetBeans  and it regenerated the cache  but the library was still missing  checked by looking in     Cache 7 2 1 index archives properties    To resolve the problem I had to close my open projects before closing NetBeans and deleting the cache

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The NetBeans cachedir is a directory consisting of files that may become large  may change frequently  and can be deleted and recreated at any time  For example  the results of the Java classpath scan reside in the cachedir   NetBeans 7 1 and older By default the userdir is inside a  hidden  directory called  netbeans stored in the user s home directory  The home directory is   HOME  on Unix-like systems  and  USERPROFILE   usually set to C  Documents and Settings   on Windows  The cachedir can be found in var cache subfolder of the userdir  As the name suggests  the userdir is unique per user  For each version of NetBeans installed  the userdir will be a unique subdirectory such as  netbeans   To find out your exact userdir location  go to the IDE s main menu  and choose Help   About   Mac  NetBeans   About NetBeans   NetBeans 7 1 allows to separate the cache directory using a switch --cachedir to a desired location   Examples A Windows user jdoe running NetBeans 5 0 is likely to find his userdir under  C  Documents and Settings jdoe netbeans 5 0  A Windows Vista user jdoe running NetBeans 5 0 is likely to find his userdir under  C  Users jdoe netbeans 5 0  A Mac OS X user jdoe running NetBeans 5 0 is likely to find his userdir under   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   A Linux user jdoe running NetBeans 5 0 is likely to find his userdir under   home jdoe  netbeans 5 0   For More Info  See this documentation at the NetBeans site  NetBeans 7 2 and newer

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Before 7 2  the cache is at C  Users username  netbeans 7 0 var cache  Deleting this directory should clear the cache for you

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tl dr You might not need to whack your entire NetBeans cache     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   The first time I had this problem  Ray Slater s answer above helped me immensely  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    Later  this problem cropped up again with NetBeans 8 1  I closed NetBeans  and ran ant build clean at the command line  and it worked  When I reopened NetBeans  the problem was resolved  It occurs to me that NetBeans was keeping something open and just needed to be closed in order to delete the folders     Update I finally figured out what was going on  Somehow  my NetBeans  Module Suite Project   yellow orange puzzle pieces icon  had been closed and the  Module Project   purple puzzle piece icon  having the same exact name as the  Module Suite Project  was open  Building clean cleaned that particular Project  correctly  but did not clean the entire Suite    Now that I have the  Module Suite Project  opened correctly again  things work as expected  This explains why ant build clean worked  since it was done on the command line at the right level to clean the whole Suite   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    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

User · Answer

The path of the cache directory is listed in the About window  menu Help About    Close NetBeans  then delete  or rename  the directory  NetBeans will rebuild its cache when it starts up

User · Answer

Close NetBeans before deleting the cache   NetBeans 7 2   Windows 7  Cache is located in C  Users  lt username gt  AppData Local NetBeans Cache    Clear the cache using the  USERPROFILE  Windows variable   del  s  q  USERPROFILE  AppData Local NetBeans Cache    If it is set  you can also use the environment variable  LOCALAPPDATA    del  s  q  LOCALAPPDATA  NetBeans Cache    NetBeans 7 2   Linux  Cache is at     cache netbeans   netbeans version  index   Mac OS X  Cache is at    Library Caches NetBeans   netbeans version    See also http   wiki netbeans org FaqWhatIsUserdir   Help Menu  On Windows  selecting the Help    About menu will display a dialog that contains the following text   Product Version  NetBeans IDE 8 0 2  Build 201411181905  Java  1 7 0 80  Java HotSpot TM  64-Bit Server VM 24 80-b11 Runtime  Java TM  SE Runtime Environment 1 7 0 80-b15 System  Windows 7 version 6 1 running on amd64  Cp1252  en CA  nb  User directory  C  Users Username AppData Roaming NetBeans 8 0 2 Cache directory  C  Users Username AppData Local NetBeans Cache 8 0 2   Regardless of operating system  the About dialog will contain the correct path to the cache directory

[netbeans] How to clear the cache in NetBeans

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