EllanJiang/GameFramework · error · GameFrameworkException

Results is invalid.

Error message

Results is invalid.

What it means

ResourceManager.ResourceGroup.GetResourceNames fills a caller-supplied List<string> with the full names of all resources in the group. The library throws GameFrameworkException("Results is invalid.") when the results list reference is null, because it uses the list as its output buffer (Clear + Add) and cannot write into a null list.

Solutions

  1. Allocate the list before calling: var results = new List<string>(); group.GetResourceNames(results);
  2. Audit all call sites of GetResourceNames for possibly-null arguments and initialize them.
  3. Wrap the call in try-catch on GameFrameworkException if the list may come from external code.

Example fix

// before
List<string> names = null;
group.GetResourceNames(names);
// after
List<string> names = new List<string>();
group.GetResourceNames(names);
Defensive patterns

Strategy: validation

Validate before calling

if (results == null) results = new List<string>();
group.GetResourceNames(results);

Type guard

bool IsValidResults(List<string> results) => results != null;

Try / catch

try { group.GetResourceNames(results); } catch (GameFrameworkException ex) { Log.Error(ex.Message); }

Prevention

When it happens

Trigger: Calling ResourceGroup.GetResourceNames(null) (or a List<string> variable that is still null at call time).

Common situations: Developers declare the list but forget to instantiate it before passing it in, or pass the result of a helper method that returned null; common when refactoring from a method that returned a new list to this fill-in-list API.

Related errors


AI-assisted analysis of EllanJiang/GameFramework@d0c010b051 (2026-09-15). Data as JSON: /api/errors/28f4bf61d3d0490a. Report an issue: GitHub.

Appendix: source

Thrown at GameFramework/Resource/ResourceManager.ResourceGroup.cs:200

                int index = 0;
                string[] resourceNames = new string[m_ResourceNames.Count];
                foreach (ResourceName resourceName in m_ResourceNames)
                {
                    resourceNames[index++] = resourceName.FullName;
                }

                return resourceNames;
            }

            /// <summary>
            /// 获取资源组包含的资源名称列表。
            /// </summary>
            /// <param name="results">资源组包含的资源名称列表。</param>
            public void GetResourceNames(List<string> results)
            {
                if (results == null)
                {
                    throw new GameFrameworkException("Results is invalid.");
                }

                results.Clear();
                foreach (ResourceName resourceName in m_ResourceNames)
                {
                    results.Add(resourceName.FullName);
                }
            }

            /// <summary>
            /// 获取资源组包含的资源名称列表。
            /// </summary>
            /// <returns>资源组包含的资源名称列表。</returns>
            public ResourceName[] InternalGetResourceNames()
            {
                int index = 0;
                ResourceName[] resourceNames = new ResourceName[m_ResourceNames.Count];
                foreach (ResourceName resourceName in m_ResourceNames)

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