We found error by use of compiler and copy the file from another project.
And we compiled it, the file of vCaluculation.cpp not recognised by compiler.
file error:
https://github.com/WaitrudWeber/source_zip/blob/master/cg-mingw-20201212-001.zip
Additionaly, the reason, compilation error is in "wTextarea.cpp", is not changed.
Converting rules is changed, we straightly think so.
Very thanks to Trick Stars:
willinglytranslate.blogspot.com
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