egametang/ET · error · Exception

not found package: {p1} {p2}

Error message

not found package: {p1} {p2}

What it means

Thrown by PackageHelper when neither the PackageCache path (Library/PackageCache/<name>@<hash10>) nor the Packages/<name>@<hash> path exists for a resolved package. The resolver computed candidate directories from the package's name+hash and found none on disk.

Source

Thrown at Packages/cn.etetet.core/Scripts/Core/Share/Helper/PackageHelper.cs:73

                if (packageInfo.source == "embedded")
                {
                    packageInfo.dir = Path.Combine(unityDir, "Packages", packageInfo.version.Replace("file:", ""));
                }
                else if (packageInfo.source == "git")
                {
                    string p1 = Path.Combine(unityDir, "Library/PackageCache", k + "@" + packageInfo.hash.Substring(0, 10));
                    string p2 = Path.Combine(unityDir, "Packages", k + "@" + packageInfo.hash);
                    if (Directory.Exists(p1))
                    {
                        packageInfo.dir = p1;
                    }
                    else if (Directory.Exists(p2))
                    {
                        packageInfo.dir = p2;
                    }
                    else
                    {
                        throw new Exception($"not found package: {p1} {p2}");
                    }
                }
                else
                {
                    packageInfo.dir = Path.Combine(unityDir, "Library/PackageCache", k + "@" + packageInfo.version);
                }
            }
            
            return packagesLock;
        }
    }
}

View on GitHub (pinned to 5cab01f7a8)

Solutions

1. Open the project in Unity once so it restores packages into Library/PackageCache before running tooling.
2. Verify the package exists in manifest.json / Packages and its resolved hash matches the directory on disk.
3. For local/embedded packages, handle them via the Packages/<name> path rather than PackageCache hash lookup.
4. Clean and let Unity rebuild Library if the hash directory is stale or missing.

Example fix

// before: tooling runs on a fresh checkout with empty Library
var pkgs = PackageHelper.GetPackages();

// after: ensure Unity has imported the project first
// 1. Open project in Unity (Library/PackageCache populated)
// 2. then run tooling
var pkgs = PackageHelper.GetPackages();

string p1 = Path.Combine(unityDir, "Library/PackageCache", name + "@" + hash.Substring(0, 10));
string p2 = Path.Combine(unityDir, "Packages", name + "@" + hash);
if (Directory.Exists(p1) || Directory.Exists(p2))
{
    // safe to resolve via PackageHelper
}

try { var pkgs = PackageHelper.GetPackages(); }
catch (Exception ex) when (ex.Message.Contains("not found package"))
{
    Log.Error("Unity packages not restored; open the project in Unity first.");
}

When it happens

Trigger: A Unity package resolved in the manifest but missing from Library/PackageCache and Packages; hash mismatch after a Unity version/library rebuild; package pulled from a git/tarball source not stored in PackageCache; CI without a populated Library.

Common situations: Fresh checkout or CI where Unity hasn't imported packages into Library yet; partial/corrupted Library folder; renamed/moved package; Unity version change invalidating cached hashes; embedded/local packages not under PackageCache.

Related errors

• ArgumentOutOfRange_Index
• Arg_ArrayPlusOffTooSmall
• Argument_IncompatibleArrayType
• btenv not found key: {key} {typeof(T).FullName}
• 不能把{value.GetType()}转换为{typeof (T)}

AI-assisted analysis of egametang/ET@5cab01f7a8 (2026-08-13). Data as JSON: /api/errors/7215155350bdae38. Report an issue: GitHub.