Visual studio 2015 isn't supported anymore.

gcontini

2020-04-26 60233cc24fce4743bc33042d479fe4c79996e551

 src/library/base/CMakeLists.txt

@@ -1,7 +1,7 @@
ADD_LIBRARY(base OBJECT
    EventRegistry.cpp
    StringUtils.cpp
    file_utils.cpp
    string_utils.cpp
    base64.cpp
    logger.cpp
)