Visual studio - Could not create the file <file>.tmp Access denied
Visual studio - Could not create the file <file>.tmp Access denied. Getting error when creating setup builds.
Link on Microsoft Support site to solve problem:
Usually, the issue on my machine is the following:
Mergemod.dll is not registered correctly
To resolve this problem, register Mergemod.dll again. Typically, Mergemod.dll is located in the following folder: C:\Program Files\Common Files\Microsoft Shared\MSI Tools\Mergemod.dll
To register the Mergemod.dll, type the following command at a command prompt, and then press ENTER:
regsvr32 "C:\Program Files\Common Files\Microsoft Shared\MSI Tools\mergemod.dll"
Be sure to open the command prompt as an administrator.