fix a few more bugs

lib/utils.js

@@ -6,7 +6,7 @@ import { toString } from 'mdast-util-to-string'
 import path from 'path'
 import fs from 'fs'
 
-import * as dirTree from 'directory-tree'
+const dirTree = require("directory-tree");
 
 class Util {
   _counter
@@ -229,12 +229,12 @@ class Util {
     const children = []
     const slugs = this.getAllSlugs()
 
-    function findFunc(slug) {
-      const fileName = Transformer.parseFileNameFromPath(this.toFilePath(slug))
+    function findFunc(_this, slug) {
+      const fileName = Transformer.parseFileNameFromPath(_this.toFilePath(slug))
       return Transformer.normalizeFileName(fileName) === Transformer.normalizeFileName(thisObject.name)
     }
 
-    const foundSlugs = slugs.find(slug => findFunc(slug))
+    const foundSlugs = slugs.find(slug => findFunc(this, slug))
 
     let routerPath = foundSlugs !== (null | undefined) ? foundSlugs : null
 

package.json

@@ -65,7 +65,6 @@
     "cytoscape": "latest",
     "eslint": "^8.0.1",
     "eslint-config-next": "latest",
-    "postcss": "^8.4.32",
     "remark-frontmatter": "latest",
     "remark-react": "latest",
     "remark-stringify": "latest",