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After compress successfully(using Poco lib), I found that I can able to decompress a .zip file which contains files but not sub-folder

My decompress block of code :

struct UnzipStruct unzipObject;
unzipObject.unzip(source, target);
Here is MyUnzipStruct :
struct UnzipStruct
    void unzip(std::string source, std::string target) {
        fs::path sourcePath = fs::path(source);
        std::ifstream inp(sourcePath.string(), ios::binary);
        fs::path targetPath = fs::path(target);
        Poco::Path targetDir(targetPath.string());
        Poco::Zip::Decompress dec(inp, targetDir, false, true);
        // if an error happens invoke the ZipHandlingLib::onDecompressError method
        dec.EError += Poco::Delegate<UnzipStruct, std::pair<const Poco::Zip::ZipLocalFileHeader, const std::string>>(this, &UnzipStruct::onDecompressError);
        dec.decompressAllFiles();
        dec.EError -= Poco::Delegate<UnzipStruct, std::pair<const Poco::Zip::ZipLocalFileHeader, const std::string>>(this, &UnzipStruct::onDecompressError);
        inp.close();
    void onDecompressError(const void* pSender, std::pair<const Poco::Zip::ZipLocalFileHeader, const std::string>& info)
        std::cerr << info.second << "\n";
} unzipObject;
Is it a bug of Poco or Did I do something wrong? Because I can extract a zip file by 7z(which contains sub-folder). The exception I get is AssertionViolationException from Poco.
                Look at the example how to set up an error handler for dec.EError pocoproject.org/docs/ZipUserGuide.html
– 273K
                Jan 6, 2020 at 6:12
                @S.M. I'm just getting errors near Ziptest, do you know which file to includes or which methods do I need to implement to fix it?
– Nguyễn Đức Tâm
                Jan 6, 2020 at 6:42
                ZipTest is just a test class name, you should implement the class ZipTest (or another name) with the method onDecompressError (or another name) and pass object of the class and pointer to the method to the poco::Delegate constructor.
– 273K
                Jan 7, 2020 at 4:11
                @S.M. yeah, I just edited my post, I have come through that but still can't extract the zip file yet.
– Nguyễn Đức Tâm
                Jan 7, 2020 at 4:12
                I think it's better to report the issue on Poco bug tracker github.com/pocoproject/poco/issues
– 273K
                Jan 7, 2020 at 4:23
        
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