ALE says packages of my project don't exist

Question

I'm having this problem with ale where in java files, it sometimes gives an error message saying that some packages don't exist. However, I can run without any problems my projects once I compile them, and the files are there, so no idea why it's giving me this error.

ALE error message

error: package logic.list does not exist

Project overview

src/
├── BuffyVampireSlayer.java
├── control
│   └── Controller.java
├── logic
│   ├── Game.java
│   ├── GameObjectBoard.java
│   ├── gameObjects
│   │   ├── Player.java
│   │   ├── Slayer.java
│   │   └── Vampire.java
│   ├── Level.java
│   └── list
│       ├── SlayerList.java
│       └── VampireList.java
├── utils
│   ├── Log.java
│   └── MyStringUtils.java
└── view
    └── GamePrinter.java

6 directories, 13 files

ALE config section

let g:ale_fixers = {
      \  'java': ['google_java_format'],
      \ }
let g:ale_linters = {
      \  'cs':['syntax', 'semantic', 'issues'],
      \  'python': ['pylint'],
      \  'java': ['eclipselsp','javac']
      \ }

whole config over here

Makefile I use to compile and run my project

run: compile printSep
    java -cp bin $(shell rgrep -l "public static void main" --exclude=Makefile | head -n 1 | sed -n "s#[^/]*/\(.*\)#\1#p" | sed "s/\.java//g") $(shell cat args)
printSep:
    @clear
    @printf '\e[33m--------\e[m\n'
compile:
    @clear
    @printf '\e[34mCompiling . . .\e[m\n'
    find . -regex ".*\.java" | xargs javac -d bin

I also used Eclipse to run it, which doesn't show any errors by the way.

Other info

OS: Linux, Ubuntu 20.10 Vim version: VIM - Vi IMproved 8.1 (2018 May 18, compiled Apr 15 2020 06:40:31) Included patches: 1-2269

Answer 1

Welcome to Vi and Vim! I think the javac linter is like a single-file compile, so it doesn't work well for whole-projects. I would suggest either setting up one of the many java build tools (maven, gradle, ant, etc.?) or using a linter that works with projects (probably eclipselsp does)

This was the answer, from D. Ben Knoble. I had to get rid of the javac linter I had specified in my config.

let g:ale_linters = {
      \  'cs':['syntax', 'semantic', 'issues'],
      \  'python': ['pylint'],
      \  'java': ['eclipselsp']
      \ }