in my Windows 7 i have a folder for maven in C:Users/MyUser/.m2 , i need to move this folder to the E drive , i changed the settings.xml file to
<localRepository>E:/Maven/MavenRepo</localRepository>
,in Eclipse i changed the user's settings for maven to point to the settings.xml file but still downloading the artifacts in the same old folder on the C drive, How i can move that folder?
Can you verify which settings file you changed, the one in c:Users/MyUser/.m2 or the global settings file in maven-installation/conf folder.
I think cannot delete .m2 folder,execute maven command need it.
Related
I am trying to load tomcat 7 into eclipse using this tutorial.
When I unzipped to the folder associated with the project, the tomcat folder was loaded as a subfolder. I therefore dragged all the folders into the root folder of the new tomcat7 eclipse project. The only folder which eclipse would not move is the bin folder. Eclipse instead gives me a dialog box with the following error message: "The element 'bin' exists in the selected destination. You can either skip the conflicting element, skip all conflicting elements, or cancel the whole operation."
The problem is that there is no bin folder present. Eclipse does not show a bin folder in the tomcat7 project within eclipse. And the windows explorer view of the file system also does not show any folder named bin within the tomcat7 folder in the directory hierarchy associated with the workspace.
I feel that I need the contents of the bin folder in the place where eclipse can see and work with them. Can anyone show me how to move the contents of the bin folder into the place where eclipse will see them? Now, the bin folder is stuck as a subfolder within the tomcat subfolder within the tomcat7 project.
As your default Java Output Folder for the project, it's hidden in the Package Explorer since everything that goes there was either compiled from or copied from a visible Source Folder. Use the Navigator View when working at this low a level instead.
I delete the whole .metadata folder by mistake, so my projects in eclipse cannot run at all, and there is no backup for .metadata folder. what should I do to fix this ?
Thanks!
If you don't have too many projects you could do this:
Open eclipse with the same workspace as before.
Create a new project with the exact same name and working directory as your previous project.
Repeat step 2 for each project.
Eclipse will find the files, but if you had any additional settings you might have to add them manually.
Should renaming a project in Eclipse also rename project folder on file system ?
My project file system name remains the same even when I rename the file on Eclipse.
Should I manually rename the project on the file system to same on Eclipse ?
It appears that renaming a project will only rename the underlying filesystem directory if the project was created with the "Use Default Location" checkbox selected (meaning the project is created in the workspace directory). If you create a project and specify a custom location outside the workspace, renaming that project in Eclipse does not rename the project's host directory. In that case, you'll probably want to:
Rename the project in Eclipse (which will update any internal references and the .project file)
Remove the project from your Eclipse Workbench view (making sure that the "Delete file contents" option is NOT selected in the delete confirmation dialog).
Rename the project's directory in your filesystem.
Import the project back into your Eclipse workspace.
I was surprised to learn this (I tested it with Eclipse 3.7), but it seems to be logical to me. The idea is that projects in the workspace folder are considered to be "under Eclipse control" as opposed to projects that are located in arbitrary places on your filesystem.
Use Refactor to rename the project name. It will rename the file/folder in filesystem as well.
Menu -> Refactor -> Move... (Shift + Alt + V).
In this window you can change name of the folder name and also change the path completely.
If the folder name is important, then change it manually. Keep in mind that you will have to re-open or re-import the the project into eclipse. After you rename the folder, Eclipse won't know where to find it.
In Eclipse Oxygen (4.7) the Move option is greyed and renaming the project does not rename the directory. However, if you switch to the Navigator view (may need to find it under Window > Show View > Navigator) the Move option will be available and it will rename the project's directory.
This is a lot faster than having to recreate the project or re-import it.
If your project is a Maven project to rename, do steps as followed:
Open Context Menu on your project > Refactor > Rename Maven Artifact.
Change Group or ID.
Check "Rename Eclipse project in Workspace".
press OK button.
Update maven project by Context Menu > Maven > Update Project.
Using eclipse Neon 4.6.3, renaming does not work. You will have to do what E-Ritz said in his answer.
It is also worth mentioning that if you are importing a project as a Maven project (via Import... -> Existing Maven Projects), the project name will be taken from the pom.xml rather than the folder. So you should also change the <name>my-project-name</name> part of the pom
I installed maven plugin for eclipse and was able to use it only in eclipse. I want to be able to run maven commands from terminal so installed maven as explained in the below link:
http://www.mkyong.com/maven/how-to-install-maven-in-ubuntu/
My questions are
I could not find settings.xml in this path /home/raki/.m2/ -- What should I do for this?
Does the maven installed in the above step affects the maven installed in eclipse? These two mavens work independently or how is that?
settings.xml is not required (and thus not autocreated in ~/.m2 folder) unless you want to change the default settings.
Standalone maven and the maven in eclipse will use the same local repository (~/.m2 folder). This means if some artifacts/dependencies are downloaded by standalone maven, it will not be again downloaded by maven in eclipse.
Based on the version of Eclipse that you use, you may have different maven version in eclipse compared to the standalone. It should not matter in most cases.
Installation of Maven doesn't create the settings.xml file. You have to create it on your own. Just put it in your .m2 directory where you expected it, see http://maven.apache.org/settings.html for reference. The m2eclipse plugin will use the same settings file as the command line.
The settings.xml file is not created by itself, you need to manually create it. Here is a sample:
<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0
https://maven.apache.org/xsd/settings-1.0.0.xsd">
<localRepository/>
<interactiveMode/>
<offline/>
<pluginGroups/>
<servers/>
<mirrors/>
<proxies/>
<profiles/>
<activeProfiles/>
</settings>
As per the maven's documentation, there are two possible settings.xml locations
One is the global maven's repo (Your initial download and subsequent unzipped files from apache maven) $M2_HOME/conf/settings.xml
And the second is the user created one (Your local copy) ${user.home}/.m2/settings.xml
The local copy takes precedence over the global copy in terms of settings information. But it is said that they both get merged during "runtime". If you need to have your local copy of the settings.xml, simply copy from the global copy and paste in your .m2 folder and adjust the details as needed
I also underwent the same issue as Maven doesn't create the settings.xml file under .m2 folder. What I did was the following and it works smoothly without any issues.
Go to the location where you maven was unzipped.
Direct to following path,
\apache-maven-3.0.4\conf\ and copy the settings.xml file and paste it inside your .m2 folder.
Now create a maven project.
You can verify where your Setting.xml is by pressing shortcut Ctrl+3, you will see Quick Access on top right side of Eclipse, then search setting.xml in searchbox. If you got setting.xml it will show up in search. Click that, and it will open the window showing directory path wherever it is stored. Your Maven Global Settings should be as such:
Global Setting
C:\maven\apache-maven-3.5.0\conf\settings.xml
User Setting
%userprofile%\\.m2\setting.xml
You can use global setting usually and leave the second option user setting untouched. Store your setting.xml in Global Setting
By Installing Maven you can not expect the settings.xml in your .m2 folder(If may be hidden folder, to unhide just press Ctrl+h). You need to place the file explicitly at that location.
After placing the file maven plugin for eclipse will start using that file too.
I am using Eclipse PDT 3.5 on Vista (32 bit). It works, though eclipse needs admin rights to execute. This annoys me, but I accept it.
But: every now and then (I am not sure, it may even be everytime I want to open a project), I get the error message "The project description file (.project) for my project is missing.".
It is NOT missing, it is in the main folder of the project. It has no special flags set (it is not hidden, nor system file, nor write-protected).
This is for ALL projects I have in my list. The only solution I have found so far is to delete the project from eclipse an re-add it. This is somewhat annoying.
What can I do?
EDIT: The workspaces are on a server volume. Can this be the problem? I used Eclipse 3.3 before, and there it was no problem with the server paths. And the server volume is mapped to a drive letter.
I've found this solution by googling. I have just had this problem and it solved it.
My mistake was to put a project in other location out of the workspace, and share this workspace between several computers, where the paths differ. I learned that, when a project is out of workspace, its location is saved in workspace/.metadata/.plugins/org.eclipse.core.resources/.projects/PROJECTNAME/.location
Deleting .location and reimporting the project into workspace solved the issue.
I had the same problem and in my case .project file was also present in the project directory and had correct permissions.
This problem happened to me after I closed and reopened multiple projects quickly one after another and Eclipse tried to rebuild them at the same time.
In my case Eclipse lost .location file in the workspace directory for 2 out of 5 projects: <workspace>/.metadata/.plugins/org.eclipse.core.resources/.projects/<project name>/.location
I've followed instructions on How to get project list if delete .metadata accidentally and imported the project in the workspace manually via File :: Import :: Other :: General :: Existing Projects. After that .location file was created again and Eclipse stopped complaining.
I had the same problem, and I haven't gotten that error since I close the project before I close myEclipse and don't tidy up the default location.
My project source and compiled files are outside the default workspace but there are stubb folders created by default by myEclipse in the default workspace. When I setup the project, there are two .project files - one in the default workspace that points to the working dir, and one .project in my chosen directory.
If you move the files for whatever reason manually, then Elipse lost the reference and output a missing project file error, but the reason is thaty you move manually the files and Eclipse lost the reference
I am using Eclipse 3.5.1 on Ubuntu. After rebooting my machine my projects in PHP Explorer view were giving the warning that the .project file was missing. The problem was that the external directory where my projects are hosted was not mounted on reboot. So I did a mount -a from the command line and the Eclipse recognized the files.
If you only want to checkout and you delete the folder from the workspace you also need to delete the reference to it in the Java view. Then it should checkout as if it were checking out for the first time.
<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
<name>Lynxster</name>
<comment></comment>
<projects>
</projects>
<buildSpec>
</buildSpec>
<natures>
</natures>
</projectDescription>
in the name tag give the name of the project folder
and save this file with .project extension
& paste it in the project folder.
this worked for me.
In my case i have changed the root folder in which the Eclipse project were stored. I have discovered tha when i have runned :
cat .plugins/org.eclip.resources/.projects/<projectname>/.location
Martin Encountered the same issue with a Minecraft Mod project when I changed the Main folder location.
Normally I would open the project like this
This is how my path looked when I started the project
I got the same "The project description file (.project) for my project is missing." Error.
I later found the .project file in the main folder like this.
This is the location where I found the .project file
I found that going eclipse to "File->Open Project from File System or Archive" and navigate to your main project folder with the .project file solved the problem.
My project is already included
This is my first post in here hoping it can help you out, Martin.
I created a new workspace and imported old projects. I just didn’t open this workspace for a long time, I don’t know why this problem happened
In my case it happened cause I accidentally removed eclipse metadata files.
So I fixed it by removing the project from eclipse, but without deleting files from disck.
And then reimport.
If you keep a backup of your worskpace folder, then all you need to do is restore the following folder from the backup:
workspace/.metadata/.plugins/org.eclipse.core.resources
It worked for me after I created and switched to a new workspace and copied my codebase there.