Import order matters because Unity resolves scripts, shaders, GUID references, and serialized components as packages arrive. A clean sequence prevents many failures that otherwise look random. This guide is designed to help creators make a defensible decision, preserve a stable project, and recognize the point at which a product-specific instruction should replace a general rule.

This troubleshooting order reflects the dependency patterns stated in restored product listings: Unity version, VRChat SDK, creator tools, shaders, then the purchased package. It emphasizes observation before reimporting everything. The perspective is practical rather than promotional: every recommendation is tied to something a creator can inspect, record, reproduce, or verify against current documentation.

Quick principle: Work from a known-good copy, change one layer at a time, and keep the evidence that explains why the final setup was accepted.

1. Freeze the failing project before experimenting

Repeated imports and deletions can destroy the evidence that reveals the original failure. In practice, this is the moment to slow the workflow down and create a result you can compare.

Recommended action: Duplicate the project folder or create a version-control checkpoint before changing packages. Do the check on a duplicate or documented state whenever the change can alter serialized files, materials, menus, or hierarchy. Record what you expected and what actually happened; that short note is often more useful than a long list of unverified settings.

Evidence to look for: A preserved state lets you compare fixes and recover materials or prefab overrides. Screenshots, inspector values, console output, official compatibility tables, and a successful controlled build are stronger than assumptions based on the asset thumbnail. The aim is not to collect paperwork—it is to make the next decision traceable.

Boundary and decision: Large Unity projects take time and storage to copy. The backup is still cheaper than an unrecoverable avatar. When the evidence stays ambiguous, pause and ask the creator with the product name, package version, Unity version, and a concise description of the observed behavior. That context makes support actionable and avoids destructive trial and error.

2. Read the first console error

Later errors often cascade from one missing namespace, assembly, or shader and distract from the cause. The useful question is not whether the feature can work once, but whether the setup remains understandable after another package is added.

Recommended action: Clear the console, trigger one compile or import, and investigate the earliest persistent error first. Do the check on a duplicate or documented state whenever the change can alter serialized files, materials, menus, or hierarchy. Record what you expected and what actually happened; that short note is often more useful than a long list of unverified settings.

Evidence to look for: Compiler dependencies make early failures more causally useful than the total error count. Screenshots, inspector values, console output, official compatibility tables, and a successful controlled build are stronger than assumptions based on the asset thumbnail. The aim is not to collect paperwork—it is to make the next decision traceable.

Boundary and decision: Warnings can be relevant, but they should not displace blocking compile errors. Solve the first broken dependency before the symptoms. When the evidence stays ambiguous, pause and ask the creator with the product name, package version, Unity version, and a concise description of the observed behavior. That context makes support actionable and avoids destructive trial and error.

3. Confirm the supported Unity version

Opening a project in an unintended editor version can reserialize assets and change package behavior. Treat this as a controlled checkpoint rather than an aesthetic hunch.

Recommended action: Compare the project version with VRChat's current recommendation and the product documentation before upgrading or downgrading. Do the check on a duplicate or documented state whenever the change can alter serialized files, materials, menus, or hierarchy. Record what you expected and what actually happened; that short note is often more useful than a long list of unverified settings.

Evidence to look for: Unity records the editor version in ProjectSettings, providing a concrete check. Screenshots, inspector values, console output, official compatibility tables, and a successful controlled build are stronger than assumptions based on the asset thumbnail. The aim is not to collect paperwork—it is to make the next decision traceable.

Boundary and decision: Moving backward between Unity versions is especially risky. Migrate through a copy, never the only project. When the evidence stays ambiguous, pause and ask the creator with the product name, package version, Unity version, and a concise description of the observed behavior. That context makes support actionable and avoids destructive trial and error.

4. Install the VRChat SDK through the supported path

Old manually imported SDK files can conflict with package-managed versions and create duplicate definitions. A small written record here prevents the same uncertainty from returning during the final upload.

Recommended action: Use VRChat Creator Companion or the current supported package workflow for a new or repaired project. Do the check on a duplicate or documented state whenever the change can alter serialized files, materials, menus, or hierarchy. Record what you expected and what actually happened; that short note is often more useful than a long list of unverified settings.

Evidence to look for: Official tooling controls compatible SDK dependencies and upgrade paths. Screenshots, inspector values, console output, official compatibility tables, and a successful controlled build are stronger than assumptions based on the asset thumbnail. The aim is not to collect paperwork—it is to make the next decision traceable.

Boundary and decision: Legacy projects may require careful migration rather than blind deletion. Prefer the supported dependency source. When the evidence stays ambiguous, pause and ask the creator with the product name, package version, Unity version, and a concise description of the observed behavior. That context makes support actionable and avoids destructive trial and error.

5. Add foundational tools before dependent prefabs

VRCFury or other creator tools must compile before Unity can deserialize their components correctly. This step is deliberately narrow: change one variable, observe the result, and keep the evidence.

Recommended action: Install each documented tool, wait for compilation, and confirm a clean console before importing the asset. Do the check on a duplicate or documented state whenever the change can alter serialized files, materials, menus, or hierarchy. Record what you expected and what actually happened; that short note is often more useful than a long list of unverified settings.

Evidence to look for: A clean boundary between dependencies narrows any failure to the most recent addition. Screenshots, inspector values, console output, official compatibility tables, and a successful controlled build are stronger than assumptions based on the asset thumbnail. The aim is not to collect paperwork—it is to make the next decision traceable.

Boundary and decision: Some tools have their own transitive dependencies. Follow their official installation sequence. When the evidence stays ambiguous, pause and ask the creator with the product name, package version, Unity version, and a concise description of the observed behavior. That context makes support actionable and avoids destructive trial and error.

6. Install shaders before materials

Materials reference a shader asset; when it is absent, they display pink and may not expose expected properties. The discipline matters because polished screenshots rarely expose project structure, defaults, or failure states.

Recommended action: Import the specified shader version, let it finish, then import or reimport only the affected materials. Do the check on a duplicate or documented state whenever the change can alter serialized files, materials, menus, or hierarchy. Record what you expected and what actually happened; that short note is often more useful than a long list of unverified settings.

Evidence to look for: Restored material appearance after shader installation is direct confirmation of the cause. Screenshots, inspector values, console output, official compatibility tables, and a successful controlled build are stronger than assumptions based on the asset thumbnail. The aim is not to collect paperwork—it is to make the next decision traceable.

Boundary and decision: Reimporting cannot repair a material that targeted an incompatible custom shader. Use the version named by the creator. When the evidence stays ambiguous, pause and ask the creator with the product name, package version, Unity version, and a concise description of the observed behavior. That context makes support actionable and avoids destructive trial and error.

7. Import the product package last

The purchased package sits at the top of the dependency chain and should arrive only when its environment is ready. In practice, this is the moment to slow the workflow down and create a result you can compare.

Recommended action: Review the package contents, avoid overwriting unrelated project files, and import into a clearly named vendor folder when possible. Do the check on a duplicate or documented state whenever the change can alter serialized files, materials, menus, or hierarchy. Record what you expected and what actually happened; that short note is often more useful than a long list of unverified settings.

Evidence to look for: A final package import preserves its serialized references to installed scripts and shaders. Screenshots, inspector values, console output, official compatibility tables, and a successful controlled build are stronger than assumptions based on the asset thumbnail. The aim is not to collect paperwork—it is to make the next decision traceable.

Boundary and decision: Some packages intentionally place files in shared folders. Read the import list rather than clicking through automatically. When the evidence stays ambiguous, pause and ask the creator with the product name, package version, Unity version, and a concise description of the observed behavior. That context makes support actionable and avoids destructive trial and error.

8. Repair references surgically

Deleting entire folders can break GUID connections that would have survived a targeted fix. The useful question is not whether the feature can work once, but whether the setup remains understandable after another package is added.

Recommended action: Identify the exact missing script, shader, material, or object and restore that dependency before replacing the prefab. Do the check on a duplicate or documented state whenever the change can alter serialized files, materials, menus, or hierarchy. Record what you expected and what actually happened; that short note is often more useful than a long list of unverified settings.

Evidence to look for: Unity meta files maintain reference identity, so preserving them protects existing links. Screenshots, inspector values, console output, official compatibility tables, and a successful controlled build are stronger than assumptions based on the asset thumbnail. The aim is not to collect paperwork—it is to make the next decision traceable.

Boundary and decision: If meta files were lost outside Unity, recovery may require the original package. Make the smallest change that tests the hypothesis. When the evidence stays ambiguous, pause and ask the creator with the product name, package version, Unity version, and a concise description of the observed behavior. That context makes support actionable and avoids destructive trial and error.

9. Use a clean-room project as a control

When the main project has years of packages, it can be impossible to tell whether the product itself is broken. Treat this as a controlled checkpoint rather than an aesthetic hunch.

Recommended action: Create a new supported project, install only required dependencies, and import the asset exactly as documented. Do the check on a duplicate or documented state whenever the change can alter serialized files, materials, menus, or hierarchy. Record what you expected and what actually happened; that short note is often more useful than a long list of unverified settings.

Evidence to look for: If the asset works in the control project, the conflict is specific to the main project. Screenshots, inspector values, console output, official compatibility tables, and a successful controlled build are stronger than assumptions based on the asset thumbnail. The aim is not to collect paperwork—it is to make the next decision traceable.

Boundary and decision: A clean-room success does not identify the conflicting package by itself. Use it to divide product issues from environment issues. When the evidence stays ambiguous, pause and ask the creator with the product name, package version, Unity version, and a concise description of the observed behavior. That context makes support actionable and avoids destructive trial and error.

10. Document the successful sequence

A repaired project can fail again months later when nobody remembers which versions and order worked. A small written record here prevents the same uncertainty from returning during the final upload.

Recommended action: Record Unity, SDK, tool, and shader versions plus package order in a short project readme. Do the check on a duplicate or documented state whenever the change can alter serialized files, materials, menus, or hierarchy. Record what you expected and what actually happened; that short note is often more useful than a long list of unverified settings.

Evidence to look for: A reproducible environment is evidence future maintainers can act on. Screenshots, inspector values, console output, official compatibility tables, and a successful controlled build are stronger than assumptions based on the asset thumbnail. The aim is not to collect paperwork—it is to make the next decision traceable.

Boundary and decision: Documentation ages and must be updated after migrations. Treat the setup record as part of the avatar. When the evidence stays ambiguous, pause and ask the creator with the product name, package version, Unity version, and a concise description of the observed behavior. That context makes support actionable and avoids destructive trial and error.

Editorial methodology

We begin with a duplicate project, capture the console's first error, verify required versions, and restore dependencies from foundational to product-specific. Each step is tested before the next package is added. We reviewed the language used in the restored storefront pages, separated creator claims from platform requirements, and cross-checked the technical recommendations against the primary documentation listed below. We do not treat product photography as proof of performance, compatibility, or license scope.

The process favors reproducible checks: a version number, a hierarchy reference, a before-and-after performance report, a clean console, a platform test, or a dated copy of terms. Where a recommendation depends on creative judgment, the article labels the tradeoff instead of presenting a preference as a universal technical rule.

Data limits and responsible use

Not every broken reference is caused by order. Corrupt downloads, deleted meta files, package bugs, and unsupported version combinations require creator support or a clean project migration. Product pages can also be revised after this publication date. Readers should verify the current listing, official platform documentation, and installed package version before acting. References are provided for transparency; an external link does not imply sponsorship or endorsement.

This article does not claim hands-on testing of every product, avatar base, headset, shader version, or world. It provides a structured editorial review method that can be repeated in the reader's own controlled project. For package-specific failures, preserve the original files and contact the creator with reproducible details.

Sources and further reading

Last reviewed: October 14, 2026. The editorial team reviews technical links and policy references when this guide is materially updated.