Questions tagged [eclipse]

Eclipse is an open source IDE and platform for building applications. There is a wide variety of plugins for various programming languages and other development-oriented tools (such as modeling, database browsing, etc.). This tag should only be used for questions specifically about the Eclipse IDE or platform, not for generalized (Java, etc.) programming topics.

Eclipse IDE is an open-source IDE platform written mostly in Java and primarily used for Java development through the use of the Java Development Tools (JDT) plug-ins. It is notable for its rich ecosystem of free and commercial plugins and that it is predominantly itself composed of plug-ins.

Eclipse IDE is built on an OSGI implementation called Equinox; the same OSGI-based framework is used for managing its plug-ins at runtime. Eclipse can also be used as a development environment for non-IDE GUI applications, leveraging many of the same plug-ins as the IDE to form a more general Rich Client Platform, called Eclipse RCP.

For C/C++ development, the Eclipse CDT Project provides plug-ins to create a C/C++ development environment within Eclipse IDE.

The Eclipse Web Tools Platform project supplies plug-ins for developing Open web standards-based and Java web applications, and frameworks for building higher-level web tools.

For PHP development, the Eclipse PDT Project provides a plugin to create a PHP development environment within Eclipse IDE, building on features of the Web Tools Platform. The popular commercial Zend Studio is also based on Eclipse IDE.

For Python development, PyDev provides plug-ins, called PyDev, to create a Python development environment within Eclipse IDE.

For Perl development, the EPIC project provides a plugin to create a Perl development environment within Eclipse IDE.

Note that Google has ceased developing the Android Development Tools in favor of another solution.

When combined with Cygwin (or MinGW), Mono, and its many plugins, Eclipse IDE provides a crucial part of viable open-source alternatives to using Microsoft Visual-Studio as a Windows software development platform in Windows, whilst also including comprehensive native support for Java.

Download the latest version of Eclipse IDE from eclipse.org
Download site for the Eclipse Platform project itself, including the core runtime and SDK
Eclipse Marketplace featuring Plug-ins, Bundles and Products

###Useful Links:


Within the Stack Overflow community, Eclipse is synonymous with the Java IDE, but that does not mean questions about Java are questions about the IDE.

Consider what changes your question would require if you were using vi to edit and ant to build; if your question would remain unchanged, then it is not an Eclipse question, so you should not give your question the tag. Use the tag instead.

Initial release Eclipse (1.0 - 7 November 2001)

Latest Version: Eclipse 2023-06 (4.28 - 14 June 2023)

If you suspect your issue is version specific, list the version in your question.

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Server configuration is missing in Eclipse

Im using Eclipse Galileo, and have configured it for Apache Tomcat . I have added Apache Tomcat 6.0 to Windows->Server->Runtime Environments, with the following settings: Tomcat Installation Directory -…
John
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getting JRE system library unbound error in build path

getting a JRE system library unbound error in build path, tried all suggestions from the below links, however did not work. I have jdk 1.6.0_29, I have also tried to install other versions but no help. JRE System Library [WebSphere v6.1 JRE]…
user1328572
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Adding a JAR to an Eclipse Java library

How do you add a JAR file to an already existing Java library in Eclipse? Note that this is not a user library. That is, if you look at the Java Build Path for a Java project and click on the Libraries tab, you will see the list of libraries used…
Paul Reiners
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Using both Eclipse and NetBeans on the same project

Eclipse is a really great editor, which I prefer to use, but the GUI design tools for Eclipse are lacking. On the other hand, NetBeans works really well for GUI design. Are there any tips, tricks or pitfalls for using NetBeans for GUI design and…
Milhous
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Emulator problem in Android

When I launch the emulator I face many problems (Errors):- HttpConnectionApp]emulator-5554 disconnected! Cancelling 'net.paxcel.http.HttpConnectionApp activity launch'! Emulator]emulator: ERROR: the user data image is used by another…
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eclipse: how to debug a Java program as a .jar file?

I use ant for creating .jar files in Eclipse. Works great. I have a .jar file I am working on that expects the code to be in a .jar file (it looks for .properties files in the same directory as the .jar file) -- the standard Eclipse "Run" and…
Jason S
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How do I change the default text font in Eclipse?

How do I set the default font size in Eclipse? I'd like to set a default for unrecognized file types, like shell scripts and text files.
Adam Matan
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"An error occurred while automatically activating bundle com.android.ide.eclipse.adt"

When going here: right-click on my project > Properties > Android the below error happens. This error happens when I go to Properties > Android on the project or either of the libraries (ignore BibleTriviaPro). This error seems to have came out of…
Matt
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Eclipse compiles successfully but still gives semantic errors

NOTE: it apparently is a recurrent question on StackOverflow, but - for what I have seen - either people never find a way or their solution does not work for me The problem: I am using Eclipse Juno ADT. Everything was working fine until I tried to…
JonasVautherin
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Can't update Eclipse ADT to 22

I wanted to export my projects to Android Studio but Eclipse is not getting updated... So far I've added a s in http to the url of the update source, moved ADT outside Program Files, remove the "Only read" flag on all the files, updated the sdk and…
Deses
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build.xml in Java project

What is the file build.xml? I was wondering if it is a possibility to import this project in Eclipse or Netbeans using this build.xml. I tried to import the project but I get some errors since one part is created using J2ME and the other J2SE and I…
Granit
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Opening JSF Facelets page shows "This XML file does not appear to have any style information associated with it."

I'm trying to run my Eclipse JSF project on Apache Tomcat on other computer. I created a WAR file with this tutorial. However, when I deploy the WAR and open the Facelet page in Firefox, I'm getting only the following error message: This XML file…
Krzysztof
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How to open an existing project in Eclipse?

I have just created several project using Eclipse. Now restart Eclipse and want to see one of the projects. How can I do it? I have tried File -> Import -> General -> Existing Project into Workspace. Then I select the directory of the project that I…
Roman
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java.lang.Object cannot be resolved in Eclipse

When I installed the latest installment in Mac OSX - the Mountain Lion - I experienced some problems getting Eclipse to work I also lost most of my Android developer files (but I still have my projects). I suspect this is due to the choice of…
olovholm
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Eclipse C++: Symbol 'std' could not be resolved

I am getting this error in the TestExecute.cpp - "Symbol 'std' could not be resolved" CODE #include using namespace std; I just created a executable project in Eclipse (in Windows 7) as shown below. It seems like I am selecting a…
LCJ
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