catch temp folder issue when importing

anki/__init__.py

@@ -30,6 +30,6 @@ if arch[1] == "ELF":
     sys.path.insert(0, os.path.join(ext, "py2.%d-%s" % (
         sys.version_info[1], arch[0][0:2])))
 
-version="2.0.16" # build scripts grep this line, so preserve formatting
+version="2.0.17" # build scripts grep this line, so preserve formatting
 from anki.storage import Collection
 __all__ = ["Collection"]

aqt/importing.py

@@ -167,6 +167,8 @@ you can enter it here. Use \\t to represent tab."""),
             err = repr(str(e))
             if "1-character string" in err:
                 msg += err
+            elif "invalidTempFolder" in err:
+                msg += self.mw.errorHandler.tempFolderMsg()
             else:
                 msg += unicode(traceback.format_exc(), "ascii", "replace")
             showText(msg)