#trying to compile with ant

1 messages · Page 1 of 1 (latest)

civic trellis
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I dont have much experience with java and almost none with ant, so I have done my best but I can't figure out why it doesn't work

clever orchidBOT
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<@&987246399047479336> please have a look, thanks.

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Here is an AI assisted attempt to answer your question 🤖. Maybe it helps! In any case, a human is on the way 👍. To continue talking to the AI, you can use </chatgpt:1108714622413963314>.

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TJ-Bot
I dont have much experience with java and almost none with ant, so I have done my best but I can't figure out why it doesn't work

When trying to compile with Ant, there could be several reasons why it is not working. Here are a few common issues and solutions:

  1. Check your build.xml file: Make sure your build.xml file is correctly configured with the necessary targets, dependencies, and paths.

  2. Check your environment variables: Ensure that you have set up the JAVA_HOME and ANT_HOME environment variables correctly.

  3. Check Ant installation: Verify that Ant is properly installed on your system and the PATH variable includes the path to the Ant bin directory.

  4. Check for syntax errors: Double-check your build.xml file for any syntax errors or typos that may be causing the issue.

  5. Check for missing dependencies: Make sure all required libraries and dependencies are correctly specified in your build.xml file.

  6. Check for conflicting versions: Ensure that you are using compatible versions of Java and Ant for your project.

If you have tried these solutions and are still facing issues, consider seeking help from more experienced developers on forums or communities like Stack Overflow or reaching out to a mentor for guidance. Remember, troubleshooting is a common part of development, and persistence will eventually lead to a solution.

- AI generated response
civic trellis
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``<project name="Sandbox" default="dist" basedir=".">
<description>
The build file for my sandbox simulator
</description>
<!-- set global properties for this build -->
<property name="src" location="src"/>
<property name="build" location="build"/>
<property name="dist" location="dist"/>
<property name="lib" location="lib"/>

<target name="init">
<!-- Create the time stamp -->
<tstamp/>
<!-- Create the build directory structure used by compile -->
<mkdir dir="${build}"/>
</target>

<target name="compile" depends="init"
description="compile the source">
<!-- Compile the Java code from ${src} into ${build} -->
<javac includeantruntime="false" srcdir="${src}" destdir="${build}" includes="${lib}"/>
</target>

<target name="dist" depends="compile"
description="generate the distribution">
<!-- Create the distribution directory -->
<mkdir dir="${dist}/lib"/>

<!-- Put everything in ${build} into the MyProject-${DSTAMP}.jar file -->
<jar jarfile="${dist}/lib/MyProject-${DSTAMP}.jar" basedir="${build}"/>

</target>

<target name="clean"
description="clean up">
<!-- Delete the ${build} and ${dist} directory trees -->
<delete dir="${build}"/>
<delete dir="${dist}"/>
</target>
</project>``

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happy to providee anything else

plush gust
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hm

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interesting

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so its not failing, more just not finding the soruce folder

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but nothing you have there seems wrong

deep mountain
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ant monkaw

plush gust
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ant has a bad reputation for honestly a pretty understandable reason

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its a full programming language where the syntax is XML

deep mountain
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is maven ant++?

plush gust
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in a way

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but thats not related to wht this isn't working

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also this isn't your thread

deep mountain
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mb

plush gust
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if you have follow up questions lets do it somewhere else

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@civic trellis is there a way you can send the full code for me to try on my machine?

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either a zip file or ideally github

civic trellis
civic trellis
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I'll do that now

plush gust
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works perfectly for me

# 
➜  project 14 ant
Buildfile: /Users/emccue/Downloads/project 14/build.xml

init:

compile:

dist:
    [mkdir] Created dir: /Users/emccue/Downloads/project 14/dist/lib
      [jar] Building MANIFEST-only jar: /Users/emccue/Downloads/project 14/dist/lib/MyProject-20241018.jar

BUILD SUCCESSFUL
Total time: 0 seconds
➜  project 14 ant compile
Buildfile: /Users/emccue/Downloads/project 14/build.xml

init:

compile:

BUILD SUCCESSFUL
Total time: 0 seconds
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so are you in the right directory?

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run pwd

civic trellis
civic trellis
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Is there a "right" directory?

sour merlin
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A bit of a different question, why are you using ant and not Maven or Gradle which are the current de facto standards?

plush gust
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when you run commands in the terminal

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you run those commands in the context of a directory

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so if you are in your downloads folder running pwd will give you /users/yourname/Downloads or whatever

civic trellis
plush gust
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so if its looking for a src folder it will look at

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/users/yourname/Downloads/src

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in that situation

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hence why i want to make sure the folder you are running ant from is the same folder that has the build.xml

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since your files look like

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build.xml
src/
   <JAVA STUFF>
civic trellis
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Gotcha

sour merlin
plush gust
civic trellis
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Unfortunately yeah I am in the same one as the ant build

plush gust
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okay

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are you on windows

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that can sometimes randomly make a difference

civic trellis
plush gust
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i am on a mac and its working fine

civic trellis
civic trellis
sour merlin
civic trellis
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I might just delete my code, decompress the zip and try again XD

plush gust
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i need to do some errands so forgive me if i drop this for a bit

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but nothing is wrong with that build.xml

civic trellis
plush gust
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its somethign else

civic trellis
plush gust
civic trellis
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I mean if you look for the file it makes

plush gust
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ls dist/lib
MyProject-20241018.jar

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its there

civic trellis
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I might have done a dumb

plush gust
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well I dont have that one lib

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but that jar is made fine

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oh

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ant clean deleted the code too

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thats funny

civic trellis
civic trellis
plush gust
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yeah wait a second i dont have any code here

civic trellis
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Ooooone sec

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sorry was a bit big for discord

lean glade
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no one wants to download some unknown files from MEGA upload

civic trellis
lean glade
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theres also hatebin, pastebin, etc... but Gist is the best IMO

civic trellis
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Would it work if I send the directory uncompressed through mega?

lean glade
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if its entire project, upload to GitHub

lean glade
civic trellis
lean glade
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just post the files here

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the bot will auto-upload them to Gist

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if its a lot of files, thats when you should consider an actual GitHub repository

civic trellis
lean glade
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but youll need a GitHub account

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unless you upload the files here. the bot will upload them to the TJ account's Gist

civic trellis
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sorry gonna be a minute, github is having a fit

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for some reason my library would just not commit so that will probably cause some issues

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feel free to change the code in the main.java file if the library pulls a fuss

lean glade
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your file is main.java

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but the top-level class inside is windowManager

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they need to share the same name

civic trellis
lean glade
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has a different name than the file

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if "top-level" threw you off, try comprehending it without that keyword

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the class in the file has a different name than the file

civic trellis
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huh

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I missed that thanks

high prism
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  1. All java source filenames must end in .java ✅
  2. All java source files can only have one 'top-level' public type ✅
  3. The filename, before the .java, must match the name of the top-level public type ❌

A top-level type, is a type that is not 'nested' inside another type.

lean glade
civic trellis
high prism
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The most common type you'll see in java is class (but there are interfaces, enums and records as well

lean glade
lean glade
civic trellis
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gotcha it'll be fixed asap

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main is fixed, I'll see if I can fix the library

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nope still doesn't like my library

lean glade
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i dont see a classpath entry

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so whatever library you're referring to is probably not being added to the classpath

civic trellis
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[

civic trellis
civic trellis
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<javac includeantruntime="false" srcdir="${src}" destdir="${build}" includes="${lib}"/>

lean glade
civic trellis
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it compiles everything in the source directory and links to the library?

lean glade
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there are multiple parts to it

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break it down piece by piece

civic trellis
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ok

lean glade
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here is the reference, in case:

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for a library to be recognized, it must be added to the classpath

civic trellis
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javac means that we are compiling something, srcdir has the path to my source files, the destdir sets the destination which is my build directory and finallly I let the linker know to link the files in my library directory by the includes=$lib statement

lean glade
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you seem to assume thats what includes does

civic trellis
lean glade
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is it?

civic trellis
lean glade
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why have a classpath tag if we have includes?

civic trellis
lean glade
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yup, im just encouraging the thought process

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look at the default for includes. "all .java files"

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and its a javac task

civic trellis
civic trellis
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sorry for taking so long but thanks for sticking with me throughout XD

lean glade
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its easier to understand if you know the CLI

lean glade
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you're good 👍

civic trellis
lean glade
civic trellis
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My mum is gonna be so confused lmao

lean glade
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when performing a javac action, you may want to include external files to also be compiled. but classpath is its own thing

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if you want libraries to be recognized, they must be on the classpath

civic trellis
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classpath sounded really scary bu

lean glade
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whether its ant, or CLI, or anything

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its not that scary, trust me. its just new to you

civic trellis
lean glade
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its just another term

civic trellis
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sorry accidentally hit enter

lean glade
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classpath is the "path" where all the "class" files exist

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and a JAR is just that, an archive filled with class files

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includes is its own thing

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this is why i like Ant, gets you into the guts of things

civic trellis
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huh, java is more elegant than I realised

lean glade
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java is 20+ years of the best minds getting paid tons of money

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you'll be surprised at how smart these guys are

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Oracle itself is a top company

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within the top 15 i think, along with Google, Apple, etc..

civic trellis
civic trellis
lean glade
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java is all about abstracting away the lower-level stuff

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that way we can focus more on "making things for users" rather than "fighting the machine"

civic trellis
untold mountain
lean glade
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thats why you wont see Ant used much these days. its all Gradle & Maven

civic trellis
lean glade
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but Ant will give you some deeper insight into how building works

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i still use it for education/teaching purposes

civic trellis
lean glade
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would never use it in production

untold mountain
lean glade
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its about making systems work

civic trellis
untold mountain
lean glade
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if you plan on getting a job, you cant just be a hobbyist

civic trellis
lean glade
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that kind of creativity is shunned on the market, believe it or not. we want working systems, especially when it comes to things like health care

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doesnt mean that creativity should die out though

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just gotta understand the stakes

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keep the creativity for pet projects

civic trellis
lean glade
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bingo

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thats why standards exist

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"its gotta work, we found this way to work, everyone should use it"

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if you wanna introduce something new, do it in a pet project, or write a whitepaper

civic trellis
lean glade
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there are trillions of dollars at play

lean glade
civic trellis
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my bad XD

lean glade
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whitepapers are documents, typically reviewed by higher-tier people (PhDs)

civic trellis
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alright imma sleep as I have currently been awake for ~22 hours and am barely keeping my eyes open

civic trellis
lean glade
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good, dont work while tired

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people make silly decisions when doing that

civic trellis
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yeah I can feel my gears grinding