Looks like there was an error while trying to download web3j source

[noob-programmer1]

Issue Description

I am trying to install and use Web3j CLI, but I am encountering multiple issues:
When running:
curl -L get.web3j.io | sh && source ~/.web3j/source.sh
I get the error:

Looks like there was an error while trying to download web3j
source: no such file or directory: /Users/Abhi/.web3j/source.sh

After manually downloading Web3j CLI and attempting to generate code using:

web3j generate solidity \
  -a contract/build/X.abi \
  -b contract/build/X.bin \
  -o contract/generated \
  -p com.example.contract

I receive the following error:

Exception in thread "main" java.lang.IllegalArgumentException: version must not be null
    at com.github.zafarkhaja.semver.Version$Validators.nonNullOrThrow(Version.java:1383)
    at com.github.zafarkhaja.semver.Version$Validators.nonNull(Version.java:1357)
    at com.github.zafarkhaja.semver.Version.parse(Version.java:410)

Issue Context

Web3j Version: 1.6.3
OS: macOS
Installation Attempted: Both automatic (curl) and manual
Expected Behavior: Web3j should install properly and allow code generation
Actual Behavior: Installation fails, and code generation throws an error

Would appreciate any guidance on resolving this. 🚀

[formingform]

I have same problem,
windows 11 + WSL2(ubuntu 22.04) + jdk 17

problem 1:

curl -L get.web3j.io | sh && source ~/.web3j/source.sh

may should be

curl -L get.web3j.io | bash && source ~/.web3j/source.sh

problem 2:

Checksum verification passed!
Your current java version is 17.0.14
Your Java version is compatible with Web3j CLI.
Downloading Web3j ...
Looks like there was an error while trying to download web3j
-bash: /root/.web3j/source.sh: No such file or directory

[stephane-mori]

Hello,

Same problem in GitHub Action :

Run curl -L get.web3j.io | sh && source ~/.web3j/source.sh
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed

  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
100   167  100   167    0     0   1545      0 --:--:-- --:--:-- --:--:--  1560

100  7522  100  7522    0     0  50709      0 --:--:-- --:--:-- --:--:-- 50709
Running in-memory execution
sh: 12: [[: not found
Checksum verification passed!
Your current java version is 17.0.14
Your Java version is compatible with Web3j CLI.
Downloading Web3j ...
Looks like there was an error while trying to download web3j
/home/runner/work/_temp/f34d943d-2129-4bfa-8345-0dde788119f5.sh: line 1: /home/runner/.web3j/source.sh: No such file or directory
Error: Process completed with exit code 1.

[stephane-mori]

At this address : get.web3j.io, we can find the install script.
It contains this block :

install_web3j() {
  echo "Downloading Web3j ..."
  mkdir -p "$HOME/.web3j"
  if [ "$(curl --write-out "%{http_code}" --silent --output /dev/null "https://github.com/hyperledger-web3j/web3j-cli/releases/download/v${web3j_version}/web3j-cli-shadow-${web3j_version}.tar")" -eq 302 ]; then
    curl -# -L -o "$HOME/.web3j/web3j-cli-shadow-${web3j_version}.tar" "https://github.com/hyperledger-web3j/web3j-cli/releases/download/v${web3j_version}/web3j-cli-shadow-${web3j_version}.tar"
    echo "Installing Web3j..."
    echo "https://github.com/hyperledger-web3j/web3j-cli/releases/download/v${web3j_version}/web3j-cli-shadow-${web3j_version}.tar"
    tar -xf "$HOME/.web3j/web3j-cli-shadow-${web3j_version}.tar" -C "$HOME/.web3j"
    echo "export PATH=\$PATH:$HOME/.web3j" >"$HOME/.web3j/source.sh"
    chmod +x "$HOME/.web3j/source.sh"
    echo "Removing downloaded archive..."
    rm "$HOME/.web3j/web3j-cli-shadow-${web3j_version}.tar"
  else
    echo "Looks like there was an error while trying to download web3j"
    exit 0
  fi
}

If I test curl --write-out "%{http_code}" --silent --output /dev/null "https://github.com/hyperledger-web3j/web3j-cli/releases/download/v${web3j_version}/web3j-cli-shadow-${web3j_version}.tar" with version 1.6.2 or 1.6.3, I obtain 301 (Moved Permanently). Script expect 302 (Found)

[stephane-mori]

I made a fix : LFDT-web3j/web3j-installer#22

[stephane-mori]

Until the merge of the fix, you can use this command :
curl -L get.web3j.io | sed 's/hyperledger/LFDT/g' | sh && source ~/.web3j/source.sh