The License Agreement file, "C:\WINDOWS\system32\FPdotLicense.dat" does not exist.

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License Agreement Not Found
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The License Agreement file, "C:\WINDOWS\system32\FPdotLicense.dat" does not exist. Please install this file to continue.
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OK  
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Cause:
When you build the old solution in New Visual Studio 2015, you may get the above error message.


Solution:
The following folder path needs write permission for C:\WINDOWS\system32\ while building the solution. Its a license scheme for windows.