Weebly部署Unity WebGL应用时遇JSON语法错误求助

Hey there, let's break down why you're hitting this error while getting your Unity WebGL app up on Weebly. This specific error almost always means the UnityLoader script is trying to load your project's JSON config file (like Build.json) but is instead receiving an HTML page—think a 404 error page, which starts with <—and it can't parse HTML as valid JSON.

Here are the most actionable fixes to try:

1. Verify File Paths & Complete Uploads #

First, make sure you've uploaded all required Unity WebGL build files to Weebly. Your Build folder should include at least these core files:

• UnityLoader.js
• [YourProjectName].json
• [YourProjectName].data
• [YourProjectName].wasm

Next, double-check the paths in your HTML code. The link you used for UnityLoader.js might not point to the correct location, or your project's JSON file isn't stored in the same Build folder. To fix this:

• Head to Weebly's File Manager, navigate to your uploaded Build folder.
• Right-click on UnityLoader.js and copy its direct URL, then paste that into your <script src="..."> tag.
• Repeat this for your project's JSON file, ensuring its URL is correctly passed to the UnityLoader.instantiate() function in your script.

2. Fix Your Incomplete HTML Code #

The code snippet you shared cuts off mid-script tag—you need a full, properly structured setup to instantiate the Unity player. Use this corrected template (replace placeholder URLs with your actual Weebly file links):

<!DOCTYPE html>
<html lang="en-us">
<head>
    <meta charset="utf-8">
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
    <title>Unity WebGL Player | LearningEffective</title>
    <script src="YOUR_WEEBLY_UNITYLOADER_URL"></script>
    <script>
        // Replace with your project's JSON file URL
        var unityInstance = UnityLoader.instantiate("unityContainer", "YOUR_WEEBLY_BUILD_JSON_URL", {
            onProgress: function(progress) {
                // Optional: Add loading progress feedback here if needed
            }
        });
    </script>
</head>
<body>
    <!-- This div is where your Unity app will render -->
    <div id="unityContainer" style="width: 960px; height: 600px; margin: 0 auto;"></div>
</body>
</html>

3. Check File Permissions in Weebly #

Weebly might restrict access to uploaded files if they're not set to public. In the Weebly File Manager, select all files in your Build folder and confirm their permissions are set to allow public access—this ensures UnityLoader can fetch the files it needs.

4. Clear Caches to Rule Out Stale Data #

Sometimes Weebly or your browser caches old, broken versions of your files. Try opening your site in an incognito/private browsing window, or clear your browser's cache and reload the page to eliminate cached issues.

内容的提问来源于stack exchange，提问作者Pama