c# - Cannot find missing reference -

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i trying copy code 1 project another. there 1 problem however:

the type 'microsoft.practices.enterpriselibrary.data.sql.sqldatabase' defined in assembly not referenced. must add reference assembly 'microsoft.practices.enterpriselibrary.data, version=3.1.0.0, culture=neutral, publickeytoken=null'.

the problem can't find microsoft.practices.* anywhere. know can find file?

if you're trying copy code working project, code must have reference microsoft.practices.enterpriselibrary.data. find reference in visual studio , @ properties.


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