Eclipse IDE for Java Developers (includes Incubating components)
Version: 2021-12 (4.22.0)
Windows 10
The structure of my project is as follows: there is a shared folder and there are several maven projects (microservices) in it. I deleted one of the project from workspace.
Now I want to add it back (File->Open Project...),
but I get an error in response:
Select at least one folder to import as project.
As I understand it, the problem is that such a folder is already registered somewhere in the Eclipse settings, because if I change its name, it is added without errors.
Where is this information with the project name stored in Eclipse?
How can I delete it so that I can add a project without changing its name?
I tried to delete all configuration files from the project.
Created a new workspace and switched to it.
Nothing helps
Related
I am using Eclipse Indigo, and after having successfully extracted my project folder into my Eclipse workspace, it does not show up in the package explorer. I tried refreshing eclipse and restarting it, to no avail. I am 100% certain my eclipse is using the right directory and the project is in it.
What could be the problem? Thank you.
EDIT: "import projects into workspace" worked for me, but why was that necessary?
Files in the directory are not automatically picked up by the package explorer. You need to import them.
Try using the File > import, then choose
Existing Projects into workspace.
There is a checkbox that says "Copy projects into workspace" which copies it to your workspace if it happens to be in a different folder. If you start with your files in another folder, you'll see how it's copied and set up with configuration files in your workspace directory.
To answer the question, "why is it necessary to import?" you have to realize that the Eclipse workspace is just a logical container for projects, not necessarily the physical container for them.
Also realize that a directory of project-related files does not make an Eclipse Project; Eclipse must be given or generate it's own set of configuration in order to understand a project (minimally, for Java projects, .project and .classpath). Without those, Eclipse has no idea what to do with an arbitrary folder that you call a "project." That's what the Import or Create Project wizards are doing under the covers, generating those config files.
I'm trying to import a Java project from my teams subversion repository. So I go through the import GUI for subversion, select my repository and the project, then choose to check it out as a project into the workspace.
However, the project now appears in my workspace simply as a folder:
Trying to add a new class tells me "source folder is not a java project". Is there something I am missing? Thanks.
Check out as a project only does what you want if you have checked-in the Eclipse .project, .classpath files etc. In that scenario those files get checked out and configure the Eclipse project. Otherwise you are just getting an Eclipse "Simple Project" which does not have the Java tools configured.
I assume you do not have those Eclipse files in your repository, so you want to use the other option that lets you run the Eclipse Create Project wizard as part of the checkout. This lets you choose the project type and setup some of the configuration. You can skip most of the configuration since you can also do that after the checkout finishes if you prefer.
See: Subclipse Checkout Documentation
I bought a new computer and installed Eclipse on it. After the ADT plugin finished downloading I tried to import my projects (composed of 4 sub-projects), but Eclipse doesn't see them!
I just click "import/general/import existing projects into workspace", select the folder containing the sub projects, hit the open button but Eclipse says "No projects found to import".
I'm using Eclipse Kepler and the projects files are directly taken from Eclipse Juno.
Eclipse need .project file to import the projects into workspace. what you can do is create a new project and copy the source and libraries into that project
Alternative method can be that create a new project and copy the .project file from that project to your project but make sure you edit the .project file and change the name of that project according to your project. read this for more information on .project file
http://help.eclipse.org/juno/index.jsp?topic=%2Forg.eclipse.platform.doc.isv%2Freference%2Fmisc%2Fproject_description_file.html
I will suggest you to use the First method .
Make sure that you've tried to:
Refresh everything
Searched for Nested Items
Go to (In the libg-gdx setup) Advanced >> Check Eclipse
And if that doesn't work, add a .project file into the folder manually
We are using subclips as a SVN client for our Eclipse and I have successfully checked-out the list of projects to 'C:\workspace\myprojects' folder then I have opened the eclipse and given the workspace location as 'C:\workspace\myprojects' but it's not showing any projects even there are projects, Why?
So I have imported all the projects one by one through the eclipse feature and now i can able to see the projects but my question why should i need to import even i have given the eclipse workspace folder as 'C:\workspace\myprojects'?
NOTE: But the sampe scenario is working fine in others machine, i.e they no need to import all the projects one by one when they have given the Eclipse workspace folder as 'C:\workspace\myprojects'.
Regards,
Baji
Eclipse uses the metadata to determine which projects are in the workspace. So you have to import the projects into the workspace even though they already reside in the same directory in the filesystem. Just call File / Import / Existing Projects from the filesystem and select the projects that are already there. It's a pain, but it works.
Just because you have a project inside the workspace directory doesn't mean Eclipse opens it or even sees it automatically. You must use File - Import - General - Import existing project into workspace to have your project in Eclipse.
Actually some of eclipse configuration file was deleted. hence it was not able to show.
finally after reverting the it I can able to see all the projects.
For some unknown reason the projects that I created in a workspace are no longer listed in the package explorer tab. The actual files of the programs still exist on the flash drive which was the designated workspace. How do I correct this problem so that I can access the projects in this workspace?
Are you in a different workspace? Try File > Switch Workspace or if you are in the right workspace already, you could try File > Import > General > Existing Projects into Workspace and re-import the projects.
Create new project on the menu, then select the button "Create project from existing source" and select your project directory on disk.
If you are working with Android projects, the straight import does not work. The fastest way I've found to deal with this issue is to move (not copy) the projects to a different location, then import them back into the workspace, making sure copying the files into the original workspace.
At this time, the Android eclipse plugin has a bug in it which will rename your projects to the package names, rather than using the "friendly" names you intended for the projects. Since eclipse quite often seems to drop projects in this way, this can lead to a great deal of frustration. If this bug is fixed, or you know of a workaround, I would appreciate hearing about it.
I had a case where my project disappeared from the workspace and when I tried to import the existing project into workspace, Eclipse reported the project was already in the workspace! So I simply created a new project with the same name/location as the folder in which the project was located. This brought the project back to life in my worskpace. This worked in Kepler version of Eclipse.
I found a way to resolve this issue without creating a new project.
My projects disappeared from the Package Explorer view when I was in the Java EE perspective. When I switched to the Java perspective, they reappeared in Package Explorer.
Version: Mars.2 Release (4.5.2)
Build id: 20160218-0600
Not sure what caused this issue out of the blue and how long this solution will hold.
A simple solution that requires deleting the affected projects from your workspace, then importing them again:
Delete the affected projects from your workspace (do not delete from disk)
Open the files. File >> Open Project from File System >> Select location of files >> Select projects to open.
After you import them, it should work.
Try a refresh (F5) of the workspace.