Unity package install

🌵 Needle Engine
1

I’m trying to install the unity package, but when I do, nothing happens. I get no error message, but there are no Needle UI elements, or samples, or scene templates. If I then try to import the package again, Unity says everything in the package has already been imported.

2

Hi Dylan,

If nothing happens when you’re trying to install the Needle Engine Unity package, here are some steps you can follow:

  1. Check Compatibility: Ensure that you are using a supported version of Unity (2021.3 LTS or 2022.3 LTS) (see index) (see index).

  2. Installation Process: Follow this installation process:

    • Drop the downloaded .unitypackage file into your Unity project and confirm that you want to import it.
    • Wait for the installation to finish. A window might indicate a new scoped registry (which you can close) (see index) (see index).

  3. Exploring Samples: After installation, navigate to Needle Engine > Explore Samples in Unity to view available sample scenes. You may need to install the samples package separately if it wasn’t included in the initial import (see index) (see the documentation) (see index).

  4. Logs and Errors: If you continue to have issues, check the console for any error messages during the installation process. Sometimes, the import process might silently fail without visible errors.

  5. Dependency Check: Make sure Node.js is installed since Needle Engine relies on it for managing packages. The recommended version is Node.js 18.x or 20.x (see index) (see index).

If you still face issues, could you please provide your Unity version and any console logs that might provide further insights?

Let me know how this goes!

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3

Try a right click in Unity’s Project Window and select “Refresh” (Refreshing the Unity AssetDatabase)

4

I’m using 2022.3.49f1. I also tried 2022.3.21f1 and 2022.3.9f1.
The Log is empty.

Refreshing the AssetDatabase also had no effect.

5

Hi Dylan,

Since you’re using compatible Unity versions (2022.3.49f1, 2022.3.21f1, and 2022.3.9f1) and the log is empty after attempting to import the Needle Engine, I recommend the following steps:

  1. Check Node.js Installation: Ensure that Node.js is correctly installed in your environment since Needle Engine relies on it for package management. You can verify the installation by running node -v and npm -v in your terminal.

  2. Verify Package Import Path: Make sure that when you import the .unitypackage, it is being imported into the correct Unity project and that the project directory structure allows for the necessary files to be placed. You might want to check the following structure after import:

    • node_modules/@needle-tools/engine directory should exist in your project path.

  3. Clean Install: If nothing is working, consider performing a clean installation:

    • Delete the node_modules folder and package-lock.json file in your project directory if they exist.
    • Then, attempt to reinstall the package again.

  4. Manual Installation:

    • Run a manual npm install in the Unity project directory using the terminal, which might help resolve any dependency issues directly:
      npm install @needle-tools/engine

  5. Dependency Alerts: Check if there are any alerts regarding symlink support. Some drives (especially on Windows) might not support symlinks, which can prevent proper installation (see the documentation).

If these steps do not work, please confirm your Node.js version and consider checking if the Unity Editor has necessary permissions to modify files in the project directory.

Let me know how it progresses!

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6

node -v returns v20.9.0 and npm -v returns 10.1.0
The dierctory doesn’t exist, though.

7

Hi Dylan,

Since your Node.js version is v20.9.0 and npm version is 10.1.0, you are using appropriate versions. However, if the node_modules/@needle-tools/engine directory doesn’t exist after trying to import, it indicates that the package did not install properly.

  1. Manually Create Directory: As a workaround, you can manually create the node_modules/@needle-tools/engine directory. Do this by running:

    mkdir -p node_modules/@needle-tools/engine

  2. Install via npm: After creating the directory, navigate to your Unity project root in the terminal and run:

    npm install @needle-tools/engine

  3. Check Unity Package Manager: Ensure that any package manager settings in Unity are not blocking the installation. Go to Edit > Project Settings > Package Manager, and verify that you have access to remote packages (see index).

  4. Empty Unity Cache: Sometimes, Unity caches might interfere with installations. Navigate to:

    • Windows: C:\Users\<YourUserName>\AppData\Local\Unity\cache
    • macOS: ~/Library/Unity/cache
      And clear any relevant cache files, then restart Unity.

  5. Use a Different Project: If the above steps still yield no success, try creating a new Unity project and attempt the import again.

Give these actions a try and let me know how it works out!

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8
  • Which package are you trying to import?
  • Which OS are you on?
9

It worked now. I manually created the directory, installed via Terminal, deleted the Library folder and reopened the project, and now everything works fine, thank you very much!

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