`public static void HandleOnPostprocessAllAssets (string[] imported, List<string> texturesWithoutMetaFile) {
// In case user used "Assets -> Reimport All", during the import process,
// asset database is not initialized until some point. During that period,
// all attempts to load any assets using API (i.e. AssetDatabase.LoadAssetAtPath)
// will return null, and as result, assets won't be loaded even if they actually exists,
// which may lead to numerous importing errors.
// This situation also happens if Library folder is deleted from the project, which is a pretty
// common case, since when using version control systems, the Library folder must be excluded.
//
// So to avoid this, in case asset database is not available, we delay loading the assets
// until next time.
//
// Unity *always* reimports some internal assets after the process is done, so this method
// is always called once again in a state when asset database is available.
//
// Checking whether AssetDatabase is initialized is done by attempting to load
// a known "marker" asset that should always be available. Failing to load this asset
// means that AssetDatabase is not initialized.
AssetUtility.assetsImportedInWrongState.UnionWith(imported);
if (AssetDatabaseAvailabilityDetector.IsAssetDatabaseAvailable()) {
string[] combinedAssets = AssetUtility.assetsImportedInWrongState.ToArray();
AssetUtility.assetsImportedInWrongState.Clear();
AssetUtility.ImportSpineContent(combinedAssets, texturesWithoutMetaFile);
}
}
`
