Initial changes to error messages

lib/server/readCategories.js

@@ -56,7 +56,7 @@ function readCategories(sidebar) {
       if (metadata.next) {
         if (!articles[metadata.next]) {
           throw new Error(
-            "`next: " + metadata.next + "` in " + metadata.id + " doesn't exist"
+            "Improper sidebars.json file. Make sure that documents with the ids specified in sidebars.json exist and that no ids are repeated."
           );
         }
         previous[articles[metadata.next].id] = metadata.id;

lib/server/readMetadata.js

@@ -32,7 +32,12 @@ if (fs.existsSync(CWD + "/languages.js")) {
 }
 
 function readSidebar() {
-  let allSidebars = require(CWD + "/sidebars.json");
+  let allSidebars;
+  if (fs.existsSync(CWD + "/sidebars.json")) {
+    allSidebars = require(CWD + "/sidebars.json");
+  } else {
+    allSidebars = {};
+  }
   Object.assign(allSidebars, versionFallback.sidebarData());
 
   const order = {};
@@ -155,7 +160,7 @@ function processMetadata(file) {
       metadata.previous = language + "-" + order[id].previous;
     }
   }
-  
+
   return { metadata, rawContent: rawContent };
 }
 

lib/server/server.js

@@ -157,6 +157,10 @@ function execute(port) {
     });
 
     const metadata = Metadata[links[url]];
+    if (!metadata) {
+      next();
+      return;
+    }
     const language = metadata.language;
 
     let file;
@@ -438,7 +442,6 @@ function execute(port) {
     res.send(cssContent);
   });
 
-  /* serve static content first from user folder then from docusaurus */
   app.use(
     siteConfig.baseUrl + "docs/assets/",
     express.static(CWD + "/../docs/assets")