C:\Program Files\Microsoft SQL Server Compact Edition\v4.0 目录下面
选择下面这 7 个 SQL Server Compact DLL，并复制它们：
-
Sqlceca40.dll
-
Sqlcecompact40.dll
-
Sqlceer40EN.dll
-
Sqlceme40.dll
-
Sqlceoledb40.dll
-
Sqlceqp40.dll
-
Sqlceme40.dll
到站点的Bin下面
C:\Program Files\Microsoft SQL Server Compact Edition\v4.0 目录下面
选择下面这 7 个 SQL Server Compact DLL，并复制它们：
Sqlceca40.dll
Sqlcecompact40.dll
Sqlceer40EN.dll
Sqlceme40.dll
Sqlceoledb40.dll
Sqlceqp40.dll
Sqlceme40.dll
到站点的Bin下面
原文：https://www.cnblogs.com/XM-CHC/p/6793126.html