fix ListenAndServ op

98a2179f · qiaolongfei · 08fbab94 · 98a2179f
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python/paddle/fluid/layers/io.py python/paddle/fluid/layers/io.py +1 -1

未找到文件。
--- a/python/paddle/fluid/layers/io.py
+++ b/python/paddle/fluid/layers/io.py
@@ -170,7 +170,7 @@ class ListenAndServ(object):
                'OptimizeBlock': current_block,
                'PrefetchBlock': empty_block,
                'sync_mode': True,  # did not support async now in layers
-                'grad_to_block_id': []
+                'grad_to_block_id': [""]
            })