Target "RTTBDicomIO" links to: DCMTK::dcmdata but the target was not found.

[LvChangxun]

When I compile RTTB, the error appears here and I don't know how to deal with it.

CMake Error at cmake/rttbFunctionUseModules.cmake:150 (target_link_libraries):
Target "RTTBDicomIO" links to:

DCMTK::dcmdata

but the target was not found. Possible reasons include:

* There is a typo in the target name.
* A find_package call is missing for an IMPORTED target.
* An ALIAS target is missing.

Call Stack (most recent call first):
cmake/rttbFunctionCreateModule.cmake:222 (rttb_use_modules)
code/io/dicom/CMakeLists.txt:1 (RTTB_CREATE_MODULE)

I checked that there is no problem with the compilation of DCMTK. The dcmdata is no problem。