After installing the Groovy plug-in in Eclipse, clicking Run brought up a list: Groovy Console - Groovy Script - Java Application. I'd select Groovy Script and it would take off.
Now, after checking out a colleague's Groovy project with Subclipse, opening a script in it, clicking Run brings up "The selection cannot be launched, and there are no recent launches".
Selecting Run As... shows '(none applicable)'. So I select Run Configurations... and click Groovy Script, but the Run button stays dimmed. Eclipse evidently needs more info, but what?
I suspect your colleague didn't check in the .project file. It contains the "nature" that defines the project as being a Groovy project. I don't know for certain but it is not uncommon for eclipse actions to be predicated on the presence of an appropriate nature.
I would also check the .classpath is present and valid as it should contain the Groovy libraries required to compile and run your script.
Assuming they are missing, get your colleague to add them, and after syncing you should be good to go.
Related
I installed Groovy Grails Tool Suite Version: 3.5.0.RELEASE on a Windows system.
I have created a new 'Groovy' project using the eclipse Groovy project wizard. My project contains one script called 'HelloGroovy.groovy'. When I right click on my script, and choose 'Run As', I do not see any option to run my script except for 'Run Configurations'. I want to see a groovy script option instead. Is there something I need to do to set up my ide further?
I believe your problem is that you have a space in the path to your workspace. I just tried recreating your situation and when there is no space, it works. When there is a space (e.g. C:\Documents and Settings\Foo\Bar\workspace) the menu option doesn't show. I raised https://jira.codehaus.org/browse/GRECLIPSE-1737 to cover fixing it.
I am a beginner in using Eclipse and PyDev (Aptana Studio 3). I am not used to and i don't understand the workflow in such big IDEs as Eclipse.
I have a simple task: i have a simple Python script, which i want to open and run in Eclipse, having its output in Eclipse console. Or debug it.
Until now i used another IDE called Eric4, which allowed me to do what i want - open a file and run immediately, without creating a project or setting up launch configurations.
Is this possible in Eclipse, or i have to create a project for each file i want to run or debug? I want to understand how it works.
I guess i understand that creating a project is needed at least for settings up the paths (PYTHONPATH), but if it's a single script - somehow to use by default the current directory?
For example i have a folder called snippets where i keep a lot of python scripts which demonstrate some functionality. How do i open these files one by one and run them?
Most of my coworkers launch python scripts in a separate console - python my_scipt.py.
You need to have at least one project with the configuration you want (i.e.: syntax type, interpreter), then, open the file you want to run and press F9.
If it's an external file -- i.e.: a file that's not under a project in Eclipse -- it'll ask you to associate a project with the launch to get the needed information for the launch, but the file doesn't really have to be in the project (note that you can drag external files from your filesystem into Eclipse to open them).
I suggest you follow the steps on the getting started: http://pydev.org/manual_101_root.html (it guides you to configuring PyDev and explains how to do a run/debug session).
I'm working on a blackberry project using eclipse and bb-ant tools. I've created a build.xml file to perform the build. Everytime I try to run an Ant build, eclipse pops up the progress dialog and it hangs stating "Waiting for virtual machine to exit."
I downloaded an open source Blackberry project that has an ant build and it is showing the same behavior.
Does anyone have any suggestions?
Edit:
I used the command line to build my xml file and it built fine. However, when I tried from Eclipse it still hangs.
I've tried both the standard eclipse plugin directory and the path I downloaded ant to.
You could check if your ANT_HOME settings are correct (see also this blog post).
"Window > Preference > Ant > Runtime": "Ant Home Entries".
if the jars files are from a plugin directory (beside the default 'org.apache.ant_1.7.1.v20090120-1145' one) and not an independent ant installation, that might explain the problem.
Try clicking the "Ant Home" button on the right side and setting up ant home such as "C:\path\to\apache-ant-1.7.0"
There are similar bugs to this kind of situation (bug 173419, ticket 91).
It is worth checking the JVM used for the project.
It can also occurs when a ant task is poorly implemented.
You had the problem because the java version ant tries to run with is incorrect.
By default, eclipse will try to run the ant build with the java version it uses to compile the java files (Blackberry JRE), which won't work! You need to change the jre version by choosing "Run As... > Ant build". Before clicking run, go to the JRE tab, choose "Separate JRE:" and change "Blackberry JRE " to a standard java JRE. Press the run button and everything should work correctly.
I hit this problem also. Although I never used the same solution, you pointed me in the same direction.
I was using a ant file as a builder in my project, and I disabled the Allocate Console build option. This is when I hit the 'Waiting for virtual machine to exit'.
So I simply enabled the Launch in background option and it worked.
I have an Ant build.xml which no longer runs when launched in Eclipse.
I click on the External Tools Configuration, select the Ant Build I've been running, and click Run.
Nothing happens -- no console window and the build doesn't appear to launch (the classes are not compile nor is the WAR file created).
I recently added a plugin (Spring IDE), this is the only thing I can think of that has changed recently as far as my Eclipse configuration.
I can run the Ant build fine from the command line.
Can anyone suggest where I might look to track down my error?
I'm using the Eclipse Helios release, Build id: 20100617-1415 on Windows XP.
As per pstanton's comment this symptom will occur if your ANT_HOME folder is not correctly defined in Eclipse. Eclipse seems to ignore the ANT_HOME system property.
window->preferences->ant->runtime->Classpath Tab
I faced same problem today , reason behind this was ANT_HOME path variable explained in other answers also.
Initially I added ANT_HOME at 2 places given below and it was not working.
window->preferences->ant->runtime->properties Tab
window->preferences->ant->runtime->Classpath Tab
But when I remove Classpath tab ant home entry ( by setting it to default using Restore default option on right bottom of preferences window ) it worked :). So far it is just a surprise for me because I added same ant home path at both the places.
You can check out the example in this Apache Ant tutorial.
But you can also try to run your same build.xml ant files through a Java Launcher, with org.apache.tools.ant.Main as the Main class.
That would at least prove your scripts are working in an Eclipse environment.
When you look at the Ant FAQ, you also see:
I installed Ant 1.6.x and now get java.lang.InstantiationException: org.apache.tools.ant.Main
The cause of this is that there is an old version of ant somewhere in the class path or configuration.
Maybe your error message is somehow hidden, but it can be worth checking your classpath and see if no other ant library is there.
I have a set of dependent projects in Eclipse, each with its own Ant build script. If I make a change in multiple projects, then select "Build All" (Ctrl+B), each Ant build is invoked in the correct order. But if there is an error in one project, Eclipse still tries to build the other projects also, and in the process clobbers the Ant console so that the build errors are no longer visible. This wouldn't be quite so annoying if I could open up the offending project and select "Build Project", but Eclipse out-smarts me: it won't rebuild until I open some file in the project, edit it, and save (typically I add and remove a space character wherever my cursor happens to be). An answer to any of the following questions would be welcome.
How can I configure Eclipse to (in preference order):
terminate a "Build All" as soon as any project's Ant build fails?
save all console output for "Build All" instead of resetting the console for each project?
spawn a separate console for each new instance of Ant?
allow me to force a "Build Project" even if it doesn't think anything has changed?
[UPDATE] Bonus Question:
How can I configure Eclipse so that fixing any build errors in a depended-on project counts as a "change" for the purposes of "Build Project"?
Have you tried redirecting standard out to file via a run configuration? A few screen shots to help if not... (you may try 'append' this is not in my screen shot :) )
One alternative is to have each Ant build log itself, e.g., using the following in build.xml
<record name="build.log"
loglevel="verbose"
append="false" />
Oddly, Eclipse seems to disable this logging somehow when running an Ant build.
I am not too big on ant, but can't you make the builds dependent on one another?