fix(core): update

ts/smartnpm.classes.npmpackage.ts

@@ -165,7 +165,7 @@ export class NpmPackage {
     }
   ): Promise<plugins.smartfile.Smartfile> {
     const result = await this.getFilesFromPackage(filePath, optionsArg, true);
-    return result[0];
+    return result[0] || null;
   }
 
   /**

ts/smartnpm.classes.npmregistry.ts

@@ -90,7 +90,9 @@ export class NpmRegistry {
         }
       }
       const fileResult = await npmPackage.getFileFromPackage(filePathArg, optionsArg);
-      this.registryCache.cacheSmartFile(cacheDescriptor, fileResult);
+      if (fileResult) {
+        this.registryCache.cacheSmartFile(cacheDescriptor, fileResult);
+      }
       return fileResult;
     } else {
       return cachedFile;