fix

rowers/tasks.py

@@ -351,10 +351,13 @@ def uploadactivity(access_token, filename, description='',
                    name='Rowsandall.com workout'):
 
     data_gz = BytesIO()
-    with open(filename, 'rb') as inF:
-        s = inF.read()
-        with gzip.GzipFile(fileobj=data_gz, mode="w") as gzf:
-            gzf.write(s)
+    try:
+        with open(filename, 'rb') as inF:
+            s = inF.read()
+            with gzip.GzipFile(fileobj=data_gz, mode="w") as gzf:
+                gzf.write(s)
+    except FileNotFoundError:
+        return 0
 
     headers = {
         'Content-Type': 'application/json',