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Linker Tools Error LNK1309

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type1 module detected; invalid with switch /CLRIMAGETYPE:type2

Remarks

A CLR image type was requested with /CLRIMAGETYPE but the linker could not produce an image of that type because one or more modules were incompatible with that type.

For example, you will see LNK1309 if you specify /CLRIMAGETYPE:safe and you pass a module built with /clr:pure.

The /clr:pure and /clr:safe compiler options and support libraries are deprecated in Visual Studio 2015 and unsupported in Visual Studio 2017.

You will also see LNK1309 if you attempt to build a partially trusted CLR pure application using ptrustu[d].lib. For information on how to create a partially trusted application, see How to: Create a Partially Trusted Application by Removing Dependency on the CRT Library DLL.

For more information, see /clr (Common Language Runtime Compilation) and /CLRIMAGETYPE (Specify Type of CLR Image).