Handle error exception and encoding problem

Author: chinyeungli

about_code_tool/MAPPING.CONFIG

@@ -30,7 +30,7 @@
 
 # Essential Fields
 about_resource: file_name
-about_file: Resource
+about_file: Directory/Filename
 
 
 # Mandatory Fields

about_code_tool/genabout.py

@@ -250,8 +250,12 @@ def extract_dje_license(self, project_path, license_list, url, username, key):
                 self.errors.append(Error('dje_license_key', license_key,
                                          "Invalid 'dje_license_key'"))
             else:
-                with open(gen_license_path, 'wb') as output:
-                    output.write(context)
+                try:
+                    with open(gen_license_path, 'wb') as output:
+                        output.write(context.encode('utf8'))
+                except Exception as e:
+                    self.errors.append(Error('Unknown', gen_license_path,
+                                         "Something is wrong."))
 
     @staticmethod
     def get_license_text_from_api(url, username, api_key, license_key):