I have recently tried compressing and unzipping files using the NuGet "Squid-Box.SevenZipSharp" However I can't compress them, the error probably comes from the dll library. I have tried downloading 7zip in 32 bit and 64 bit, using both .dll but the error is the same, I can't think of anything to do.
private void Compress(string source, string output)
{
/*32-bits version*/ string path = Directory.GetCurrentDirectory() + @"\32-7z.dll";
//64-bits version string path = Directory.GetCurrentDirectory() + @"\64-7z.dll";
SevenZipCompressor compressor = new SevenZipCompressor();
compressor.ArchiveFormat = OutArchiveFormat.Zip;
compressor.TempFolderPath = Path.GetTempPath();
compressor.CompressionMode = SevenZip.CompressionMode.Create;
compressor.CompressionLevel = SevenZip.CompressionLevel.Fast;
compressor.CompressionMethod = CompressionMethod.Lzma2;
compressor.ZipEncryptionMethod = ZipEncryptionMethod.Aes256;
var assemblyDllPath = compressor.TempFolderPath + "32-7z.dll";
//var assemblyDllPath = compressor.TempFolderPath + "64-7z.dll";
File.Copy(path, assemblyDllPath, overwrite: true);
SevenZipExtractor.SetLibraryPath(path);
compressor.CompressDirectory(@"A:\C#\random", @"A:\C#\empty\archive.zip", "password");
}
When im using the 32-bits dll, proyect is set as Debug x86. When im using the 64-bits dll, proyect is set as Debug x64.
The error is the following in both cases:
SevenZip.SevenZipException
HResult=0x80131500
Message = Execution has failed due to an internal SevenZipSharp issue (0x80004001 / -2147467263).
Please report it to https://github.com/squid-box/SevenZipSharp/issues/, include the release number, 7z version used, and attach the archive.
Source = SevenZipSharp
I really appreciate the time you put into this, thanks in advance.
The error code you're getting (0x80004001) corresponds to the error "Not Implemented" - it comes from the fact that you're trying to use a CompressionMethod that is not supported by the .zip format.
Unless you have specific requirements I'd suggest using CompressionMode.Default
- otherwise the following work with the .zip format:
CompressionMethod.Copy
CompressionMethod.Deflate
CompressionMethod.Deflate64
CompressionMethod.BZip2
CompressionMethod.Lzma
CompressionMethod.Ppmd
That's the answer I got from squid-box on github, just changeCompressionMethod.Lzma2
to CompressionMethod.Lzma
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