stride3d/stride · error · InvalidOperationException

Error code while running install package process [ ]

Error message

Error code {exitCode} while running install package process [{packageInstall}]

What it means

After the spawned package installer process exits, NugetStore checks process.ExitCode and throws this InvalidOperationException when it is non-zero, appending the captured stderr/stdout output so the real installer failure is visible.

Solutions

Read the appended errorOutput in the exception message — it contains the installer's actual diagnostics
Rerun the install elevated / with correct permissions if the installer failed on access rights
Verify package integrity (re-download) if output indicates corruption
Close processes locking the target files (IDE, previous install) and retry

Example fix

// before
try { await store.Install(package); }
catch (InvalidOperationException) { /* no info */ }
// after
try { await store.Install(package); }
catch (InvalidOperationException ex)
{
    Console.WriteLine($"Installer failed: {ex.Message}"); // includes exit code + output
    // handle per installer diagnostics
}

Defensive patterns

Strategy: try-catch

Try / catch

try { await store.Install(package); }
catch (InvalidOperationException ex) when (ex.Message.StartsWith("Error code"))
{
    var diagnostics = ex.Message; // includes installer output
    // surface diagnostics to the user, retry with elevation if access denied
}

Prevention

Always read the exception message for the captured installer output
Close apps locking target directories before installing
Run installers with sufficient privileges

When it happens

Trigger: The install-package helper process runs but exits with a non-zero code (ExitCode != 0) during the store's InstallPackage flow.

Common situations: Installer fails due to missing dependencies or privileges; package payload corrupted; target directory locked by another process; installer itself reports a package-specific error in its output.

Related errors

AI-assisted analysis of stride3d/stride@96fad776d2 (2026-09-14). Data as JSON: /api/errors/ba453c1b7d856392. Report an issue: GitHub.

Appendix: source

Thrown at sources/assets/Stride.Core.Packages/NugetStore.cs:1099

            {
                // Save errors
                lock (process)
                {
                    errorOutput.AppendLine(args.Data);
                }
            }
        };

        // Process output and wait for exit
        process.BeginOutputReadLine();
        process.BeginErrorReadLine();
        process.WaitForExit();

        // Check exit code
        var exitCode = process.ExitCode;
        if (exitCode != 0)
        {
            throw new InvalidOperationException($"Error code {exitCode} while running install package process [{packageInstall}]\n\n" + errorOutput);
        }
    }

    // Used only for Stride 1.x and 2.x
    private void UpdateTargetsHelper()
    {
        if (oldRootDirectory == null)
            return;

        // Get latest package only for each MainPackageIds (up to 2.x)
        var strideOldPackages = GetLocalPackages("Xenko").Where(package => package.Tags?.Contains("internal") != true).Where(x => x.Version.Version.Major < 3).ToList();

        // Generate target file
        var targetGenerator = new TargetGenerator(this, strideOldPackages, "SiliconStudioPackage");
        var targetFileContent = targetGenerator.TransformText();
        var targetFile = Path.Combine(oldRootDirectory, @"Targets\SiliconStudio.Common.targets");

        var targetFilePath = Path.GetDirectoryName(targetFile);

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