Is your Android SDK up to date?

Hi,

under linux you can use:

1. sudo apt-get install ant1.8

Which OS do you have?

Mac os x/ I tried the sudo apt get command but didn't work (command not found). I have no idea whether my Android SDK is up to date. How can I check it? I did go to Eclipse and updated everything I could with the Android SDK and AVD manager, downloaded all the available packages, refreshed all the plugins. Any ideas?

apt-get will only work in linux.  Perhaps you should get a newer ant from apache:  http://ant.apache.org/bindownload.cgi

Did all the updates in Eclipes, will try to install Apache. Thank you for the help!

Seems like I have to go enormous length to make Processing work. It worked well till the latest update:( Still not working.

I carefully followed all the steps of the tutorial, yet the ant build failed and Processing still doesn't work. Please help... 

What exactly doesn't work; compiling with eclipse?  You've installed ant in some directory, and you set the environment variables, right?

No, Just trying to run the GPS example sketch in Processing and get the same error message. The sketch needs ant 1.8. I installed ant but could not build it. All I want is to see that bloody sketch running... I'm not exactly sure what went wrong since I've done all the necessary steps the tutorial recommended.  

Now I can't even open files from the File menu. I tried to open an old sketch that used to work in Android mode and even ran on my phone. Now I can't run it. What the hell's happening??? Why can't I use Processing? Why can't I refresh/update/install the necessary ant plugin form Eclipse? I have done everything... I guess I can no longer use Processing. 

Please tel me how to install ant 1.8 or how to go back to a state where I can use ant 1.7.

To go back to 1.7 you can just remove the path statements from /etc/bash rc and/or you could reinstall eclipse.

Removed 1.7 and added 1.8 jar files as you explained but it didn't help. Thanks for the help... Any other ideas? 

What if I just re-install Eclipse? Will it install ant 1.8 if I re-install it? 

Apparently the “build.xml does not exist” message is normal. Therefor Apache is installed (1.8.2) yet no effect...

It might be a good idea to give more details about what you're trying to do, and how it fails.  

I don't have a mac here so I can't recreate what you're doing.  I think you should take a simple example, the simplest that doesn't work, and try that.  If it doesn't work, describe which environment you're trying to compile the example in.  Is it the Processing IDE, or is it Eclipse?  Try it in both Android mode, and Standard mode, if it's in the Processing IDE.  If it's in Eclipse, did you create an Android project, or did you create a Processing sketch?  All these details are important, and the fewer details you give, the less of a chance you have that someone helps you.  In the Processing IDE I had to add libraries explicitly, otherwise nothing worked.  In Eclipse you also have to add libraries to the BuildPath.

Again: ant is installed, tried different versions of Processing, sketches run in normal but android mode, the error is always the same. 

OK, so you're using the processing ide.  Look in the folder where processing got installed, there will be a subdirectory named lib, where you'll find some ant related .jar files.  It's a crazy idea, but perhaps you can replace them with the .jar files that came with the newer version of ant.  Otherwise, not sure what you can do.  I can run some of the examples that came with the processing ide on the android, but not all.  One that worked without a problem was the example under Cellular Automata, Conway.  It works in the emulator without a problem, using processing-0194.

I cannot even open files or it takes 2-3 minutes (instead of 5-10 secs). Also, there's no menu present sometimes when Processing is opened. I deleted and reinstalled Processing but it still doesn't work. I don't think it could be any worse. Any ideas? 

It's official: I cannot open files in Processing. Please guys, help me!!!

I guess I just have to re-install Snow Leopard... ridiculous.

Hi,

For now, are you trying with processing 0194 ?
In my lib folder, in processing 0194, I have this antlr.jar. this is what your are looking for ?

I have that file but it's irrelevant. I can't open files in Processing... nothing. Since I installed the latest version, Processing stopped working. Thank you for your kind help anyway!

I'm angry and frustrated. No one can help me and it seems that all these years of learning programming was just a waste of time since I cannot use the Processing. I'll try a Snow Leopard re-install. If it doesn't help, I'll just burn my Processing books and start learning Eclipse:)

Thank you for all the help so far! If you have any ideas how to fix Processing other than re-installing my OS, please let me know!

Ok I solved this, so when you get your processing back up or any future users that run into this problem this should help.
The problem is Processing ships with its own copy of ant independent of what's on your system.
Processing in fact is pretty close to being self contained so if you're getting a library error, it's probably in processing's folders and not in the system.
if you want to see what version of ant your copy of processing has go to
processingYrVersionHere/lib
and type
./ant -v in the terminal
If it's less than 1.8 you can't export your sketch to the android emulator.
Hence the error you're getting means the copy of Ant in processingYOURVERSIONHERE/lib
is the problem.
You need to go to
http://ant.apache.org/bindownload.cgi

and download the binaries for your system.
Next uncompress the latest version of apache ant
and open the bin folder.
copy ant to processingYRVERSIONHERE/lib
and overwrite the version that came with processing.
Next go back to your apache_ant folder and open up lib copy ant-antlr.jar
go back to your processing lib folder and find antlr.jar and rename is antlr-old.jar
now paste the new ant-antlr.jar and rename it antlr.jar
finally go back to the apache ant folder open up lib and copy everything
paste all of it in your processing lib folder and overwrite all.
This has worked for me, but I'm still getting errors when it comes to exporting to the emulator.

p.s. you don't actually need every file in apache_ant's lib directory, but it seems to work if
you just copy all of them to processing's lib.

That's amazing but at this moment Processing does not work at all. When I say it doesn't work it means I cannot open files at all, it doesn't even load the menu. Topic here. Once I get it to work I'll try your work around. Thank you very much for all your efforts, I just wish I could try it...

Thanks for all the help guys, I really appreciate it!