Suddenly I have started getting this error.
It was working fine as expected until recently for months without any issue.
The problem I am facing is when I am opening file associated with Netbeans using double click, on 1st instance it opens fine but while opening the second file using double click.
I get a window telling:
An instance of the program is already running with your user directory
Either a previous session of the program is running on a different computer
and using the same user directory.
If another session of program is running with the same user
directory,please click to cancel to prevent the corruption of the user
directory. If you are sure that no other instances of the program is running
with your user directory, click OK to continue.
I have google for error. The only solution I found is that there is lock file in your user directory which needs to be deleted.
But in my case what I observed that there is no stale lock file. The lock is present only when Netbeans is running. once I close the netbeans, the lock file is removed on its own.
I have also deleted all the cache, thinking that it might be causing some issues.
But none of it could resolve the issue.
Again If I directly starts Netbeans without double clicking the file, then I am not able to open even a single file using double click and I get the same error box.
Maybe it is late to write but i have had exactly the same problem. So many times i uninstalled and installed old version (like 7.x) , even i uninstalled java jdk :)
I thought to start using JetBrains but i couldnt open the JetBrains. I searched why JetBrains doesnt open for a few hours and i realized that the problem is Kaspersky.
https://intellij-support.jetbrains.com/hc/en-us/community/posts/206489659-Error-Cannot-Lock-System-Folders
I uninstalled Kaspersky and opened the JetBrains.
Bingo! :)
And with that NetBeans (8.2) started to open without any problem.
I have no idea why Kaspersky would be a problem.
(Platform: Win 10 , x64)
Related
I was working on a project on NetBeans 12.4 and the moment i ran the code my pc got a bsod error and restarted itself, however the moment it restarted all the code in my one class was gone, is there any way to recover it? Its asking me to start from line 1, i checked the history but there was nothing as well
The .java file is still there and it shows its 16KB big but when i open it theres nothing
I can import a sample app project, try to build it and I keep getting this error. Not always the same file but a new temp file each time. I've tried several different samples. I've been programming for 30+ years and feel completely clueless. Only clue seems to be the Windows Task Manager shows 99% to 100% CPU usage when it gives the error and ends the build.
Do This
File -> Invalidate Caches / Restart.. -> Invalidate/ Restart
When this happens to me on Windows 8, I open the task manager
and simply kill all the instances of "openjdk platform binary"
Just clean the project and have a run ! It would work ....
Choose app instead of DefaultPreview. Now if you build, then you should not see this issue.
Invalidating the IDE cache is NOT enough.
To delete the folder app\build we should first stop locking process - OpenJDK Platform binary.
Delete the folder app\build
Invalidate Caches / Restart...
Context: Using Coroutines in Android Instrumented Test.
GL
I have the same issue's.Even I tried all the solution mentioned here it didn't work.Even I can't delete the signin file as running android studio administrative mode.I see a notification at bottom right side of the IDE update gradle pluggin.So update gradle pluggin usually worked for me
Kill task "openjdk platform binary" works for me
Restart of Android Studio with cache invalidation doesn't help.
As others said, we should delete a <module>\build folder. Because a file is locked by OpenJDK Platform binary, we should stop this process in Task Manager (or unlock the file via LockHinter).
I had the same problem and in my case it is due to multiple Java Run times (JRE's). Try switching between JRE's in android studio or use only one Java runtime.
Hope it fix the problem. Happy Coding..
Invalidate Caches / Restart doesn't work all the time and it's not the better idea to close the whole Android Studio just we couldn't figure out what process was using it.
Please follow the below steps to figure out which process is using your file.
You can use the Resource Monitor for this which comes built-in with Windows 7, 8, and 10.
Open Resource Monitor, which can be found
By searching for Resource Monitor or resmon.exe in the start menu, or
As a button on the Performance tab in your Task Manager
Go to the CPU tab
Use the search field in the Associated Handles section
When you've found the handle, you can identify the process by looking at the Image and/or PID column.
You can then try to close the application as you normally would, or, if that's not possible, just right-click the handle and kill the process directly from there.
Ref : https://superuser.com/questions/117902/find-out-which-process-is-locking-a-file-or-folder-in-windows
try to delete the file (the folder inside builder message)
the message will contain process name ( i dont remember the name)
find the prcess in task manager and stop it
I had 2 jre's installed when I installed android studio. Uninstall the one that you find from control panel and that is located something like c:\program files\java etc.
On the next opening of android studio 4.0 + it will fallback to "C:\Program Files\Android\Android Studio\jre" and the process lockdown after each succesfull build will stop
If the error is recurring, you can try a file leak detector to determine what part of the gradle process is holding your files. As suggested here,
Download file leak detector
Check with resmon what process is holding on to the file
Depending on where the file is locked, do the following:
Android Studio: In studio, go to Help → Edit custom VM options and add the following line:
-javaagent:path/to/file-leak-detector.jar=http=19999
Gradle: Add to your gradle.properties file the following line:
org.gradle.jvmargs=-javaagent:path/to/file-leak-detector.jar=http=19999
When the problem occurs again, open localhost:19999 in your browser and search for locked files.
In my case, I found out that a file was held by AspectJ compiler/weaver (ajc):
#115 C:\Users\me\StudioProjects\myapp\app\build\intermediates\compile_and_runtime_not_namespaced_r_class_jar\debug\R.jar by thread:Execution worker for ':' Thread 3 on Mon Oct 19 18:41:06 BST 2020
at java.util.zip.ZipFile.<init>(ZipFile.java:156)
...
at org.aspectj.tools.ajc.Main$run.call(Unknown Source)
I was running it directly from Gradle:
new Main().run(args, handler)
I don't know if it's possible to make ajc release the files. So I resolved my issue by running it in a separate process. I added a new configuration to get aspectjtools onto classpath:
val weaving: Configuration by configurations.creating
dependencies {
weaving("org.aspectj:aspectjtools:1.9.6")
}
And instead of the above code, I did:
javaexec {
classpath = weaving
main = "org.aspectj.tools.ajc.Main"
args = arguments
}
For those which are still searching for this answer in 2022, remove the build folder and rebuild...
Had the same on Windows 10, it was resolved by closing all "Command Prompt" (cmd) windows 🤷♂️
Terminating "OpenJDK platform binary" from Task Manager then deleting src/build and finally rebuilding the project should make it work.
Above suggested solutions may fixed this error but they are time consuming so the best solution to fix this problem is open command prompt and run the following command.
taskkill /im java.exe /f
In my case, deleting the /.gradle/ directory and rebuilding resolved the issue.
If you are using External Emulator:
Restarting Android Studio with cache invalidation doesn't helped.
The file that caused the problem is being used by the emulator and if you are using an external emulator (BlueStacks) like me, restarting Android Studio will not help. I restarted the emulator and the problem went away.
It happened me many times while building or Cleaning the Project
The solution is simple:
Open the Specific Directory
Close the Android Studio
Delete the particular Directory
Now run the Android Studio
No matter what I do, I can't get Netbeans 11 to work with JDK 11. Can you help me out?
Please note that this issue does NOT occur with JDK 8.
Downloaded and installed JDK 11 to C:\Program Files\Java\jdk-11.0.4
Downloaded and unzipped Netbeans 11 to C:\Program Files\netbeans
The etc/netbeans.conf file has been edited to set JDK home:
netbeans_jdkhome="C:\Program Files\Java\jdk-11.0.4"
When trying to run bin/netbeans64.exe:
First time: The loading window appears, loads for a bit, and then the
whole program disappears.
Second time: Loading window does not appear. An empty Java application
appears.
If I go to Task Manager and manually end the Netbeans process, I can
get back to First time.
For the attachments listed below, please refer to the issue I created here:
https://issues.apache.org/jira/browse/NETBEANS-2865
Executing netbeans64.exe from PowerShell outputs error messages to the console. They can be found in consoleOutput.txt attachment.
The results from executing bin/netbeans64.exe --trace C:\netbeans.log can be found in netbeans.log attachment.
For reference, this is the tutorial I followed:
https://www.youtube.com/watch?v=cxh-hVty09g
Update & Solution
I FINALLY got it to work thanks to the answer provided by skomisa.
The issue was caused by Netbeans 11.0 importing settings from a previous version. There was a popup the first time I ran Netbeans 11.0 asking if I wanted to import my settings from a previous version. Refer to skomisa's answer for more details on why.
To solve it, I deleted ALL of the preference files for NetBeans 11 by deleting the entire folder in AppData.
C:\Users\Hunter\AppData\Roaming\NetBeans\11.0\
Skomisa's answer mentioned trying to create a new unzipped version of NetBeans 11 and not importing the settings. I had actually tried this previously, but never got the popup window asking if you want to import. I assume this is because the user preference files for this version of NetBeans have already been created and are still sitting in AppData.
This leaves you with two viable options:
Delete all of the user preference files for NetBeans 11.0.
Search through the entire folder for instances of \u0000 and remove them.
It seemed easier and more satisfactory to remove the entire folder and start from scratch. That way, all of my user preference files are using the newest practices accepted by the JDK and Netbeans and that, hopefully, there is no lingering legacy code that will randomly break the next time I update.
Thanks for everyone's help!
Your problem appears to be related to the IllegalArgumentException ("Key contains code point U+0000") in the console log output of your bug report. It looks like NetBeans is trying to import your preferences from an earlier release of Netbeans, and is is finding some invalid null character(s) in your preference file(s).
This has been bug reported before, but remains unresolved. See Bug 271652 - IllegalArgumentException: Key contains code point U+0000.
Your preference files are all XML files (with extension xml), and reside in various directories under C:\Users\user ID\AppData\Roaming\NetBeans\11.0\config.
In my case my only preference file for NetBeans 11 is named C:\Users\johndoe\AppData\Roaming\NetBeans\11.0\config\Editors\text\x-java\Preferences\org-netbeans-modules-editor-settings-CustomPreferences.xml but you may have more than one.
From the stack trace in your console log, the failing call is AbstractPreferences.getBoolean(), so the null is probably on a line containing Boolean in your preference file. However, as this somewhat related SO answer suggests, just blindly remove all nulls from all preference files. Nulls should never exist in any XML file anyway.
An alternative approach to solving your problem is to create a new unzipped version of NetBeans 11, but do not import your settings.
I suppose you could even locate the preference files in your existing (broken) NB 11 installation and delete them, though that seems like an unsatisfactory approach even if it works.
A few related points:
Seeing the NetBeans window appear briefly before it vanishes is often a symptom of having set netbeans_jdkhome to an invalid JDK path, but in your case the value looks fine.
JAVA_HOME is ignored by NetBeans, so that cannot be the cause of your problem. See the response to Bug 198950 - NetBeans should use the JAVA_HOME and JDK_HOME environment variables, if available, to determine which JDK to use for details on how NetBeans decides which JDK to use. Specifying the --jdkhome parameter when you start NetBeans will override everything else.
The IllegalArgumentException only arises with JDK versions >= 9 because of a JDK bug fix, but that's a good thing. See JDK-8075156 : (prefs) get*() and remove() should disallow the use of the null control character '\u0000' as key for details. You weren't getting the problem with NetBeans 8.x because you probably weren't ever importing any preference files, but even if you were the IllegalArgumentException would not have occurred due to the Java bug fixed by JDK-8075156.
I created a new web project on Netbeans. As usual, in order to be sure that everything is OK before coding, I tried to run my project directlywith Netbeans.
For what I can see, evrything is great, except that I have a popin with the followed message : "Cannot run /usr/bin/firefox". A fex months ago, running a project by this way was perfectly good. I don't know what has changed.
What I tired/checked :
The file /usr/bin/firefox exists ;
I give it all the rights (reading, writing, executing) ;
if I specify another browser in Netbeans, the result is the same (of course, the message changes but keeps the same format) ;
My firefox is pefectly running, excpet for that.
I'm currently on Debian and Firefox v45.9.0.
Do you have any idea of what could cause this problem ? Any help is welcome !
Marine
Go to Netbeans menu Tools > Options. In the General Tab, Web browser section tab click edit.
Select Web browser as firefox (I guess it is already like that for you).
On the right hand side, if the text in Arguments section is -remote "openURL({URL})" , bingo that could be the problem.
Change it to {URL}.
Save and try running the project. Hope it works..
I was trying out the sample project using libGDX(a clone of Flappy Bird) in Eclipse. This is the link to the tutorial - http://www.kilobolt.com/day-2-setting-up-libgdx.html.
In the step 18(please visit the link), when I clicked the "Run as Java Application", I am getting error alert box with message "LoadLibrary failed with error 87:The parameter is incorect". What could be the reason?
ok even though i didn't understand the reason, just got the solution from here http://aerotekit.com/win8-1-loadlibrary-failed-error-87-parameter-incorrect. This is an issue with windows 8.1 (my assumption) and it can be solved by editing the registry. Copy-pasting the solution below:
Copy this code into a text file:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class{4d36e968-e325-11ce-bfc1-08002be10318}\0000]
"OpenGLVendorName"=hex(7):61,00,74,00,69,00,6f,00,36,00,61,00,78,00,78,00,2e,\
00,64,00,6c,00,6c,00,00,00,61,00,74,00,69,00,6f,00,36,00,61,00,78,00,78,00,\
2e,00,64,00,6c,00,6c,00,00,00,00,00
Now save the file and change the extension from .txt to .reg. If you are unable to edit the extension you may have to go into your folder options and make the extensions viewable.Note: The next step has you edit a registry entry. I recommend that you make a registry backup before proceeding. While this is unlikely to cause any issues, it is better to be safe than sorry.
After you have the .reg file on your desktop just double click it and it will run.
Restart your computer.
I got the same error when I was trying an example from book. I changed the jdk used in eclipse from 64 bit to 32 bit and this error was gone.