diff --git a/lib/jsduck/app.rb b/lib/jsduck/app.rb
index 6b8947de763a2d4798d7791f549d66a7803e3f25..52c853fbb09bcdcd53cb2a415fee729d08d8ef59 100644
--- a/lib/jsduck/app.rb
+++ b/lib/jsduck/app.rb
@@ -107,10 +107,7 @@ module JsDuck
         begin
           SourceFile.new(JsDuck::IO.read(fname), fname, @opts)
         rescue
-          puts "Error while parsing #{fname}: #{$!}"
-          puts
-          puts "Here's a full backtrace:"
-          puts $!.backtrace
+          Logger.instance.fatal("Error while parsing #{fname}", $!)
           exit(1)
         end
       end
@@ -167,10 +164,15 @@ module JsDuck
       # Format all doc-objects in parallel
       formatted_classes = @parallel.map(@relations.classes) do |cls|
         Logger.instance.log("Markdown formatting #{cls[:name]}")
-        {
-          :doc => class_formatter.format(cls.internal_doc),
-          :images => doc_formatter.images
-        }
+        begin
+          {
+            :doc => class_formatter.format(cls.internal_doc),
+            :images => doc_formatter.images
+          }
+        rescue
+          Logger.instance.fatal("Error while formatting #{cls[:name]}", $!)
+          exit(1)
+        end
       end
       # Then merge the data back to classes sequentially
       formatted_classes.each do |cls|
diff --git a/lib/jsduck/guides.rb b/lib/jsduck/guides.rb
index d0f7cda8ac1b8fa47385c7237a8fcdbf40df2447..a5a4cc5df260385efcc3c00086fe71038a137279 100644
--- a/lib/jsduck/guides.rb
+++ b/lib/jsduck/guides.rb
@@ -59,16 +59,22 @@ module JsDuck
 
     def load_guide(guide)
       in_dir = @path + "/guides/" + guide["name"]
-      return Logger.instance.warn(:guide, "Guide #{in_dir} not found") unless File.exists?(in_dir)
 
-      guide_file = in_dir + "/README.md"
-      return Logger.instance.warn(:guide, "README.md not found in #{in_dir}") unless File.exists?(guide_file)
+      begin
+        return Logger.instance.warn(:guide, "Guide #{in_dir} not found") unless File.exists?(in_dir)
 
-      @formatter.doc_context = {:filename => guide_file, :linenr => 0}
-      name = File.basename(in_dir)
-      @formatter.img_path = "guides/#{name}"
+        guide_file = in_dir + "/README.md"
+        return Logger.instance.warn(:guide, "README.md not found in #{in_dir}") unless File.exists?(guide_file)
 
-      return add_toc(guide, @formatter.format(JsDuck::IO.read(guide_file)))
+        @formatter.doc_context = {:filename => guide_file, :linenr => 0}
+        name = File.basename(in_dir)
+        @formatter.img_path = "guides/#{name}"
+
+        return add_toc(guide, @formatter.format(JsDuck::IO.read(guide_file)))
+      rescue
+        Logger.instance.fatal("Error while reading/formatting guide #{in_dir}", $!)
+        exit(1)
+      end
     end
 
     def write_guide(guide, dir)
diff --git a/lib/jsduck/logger.rb b/lib/jsduck/logger.rb
index 58b53ef038cd850746e9fdf1b4e4970146375aa6..2c736f6f072362ce13a0b6311c507812beddbb61 100644
--- a/lib/jsduck/logger.rb
+++ b/lib/jsduck/logger.rb
@@ -114,6 +114,15 @@ module JsDuck
       end
       out
     end
+
+    # Prints fatal error message with backtrace.
+    # The error param should be $! from resque block.
+    def fatal(msg, error)
+      puts "#{msg}: #{error}"
+      puts
+      puts "Here's a full backtrace:"
+      puts error.backtrace
+    end
   end
 
 end