TTsZipPackage now fails for Mac resource fork issues. I have communicated with Thomas, who is aware of the problem, but suggested I patch it myself. Since this is beyond my skill set, I am wondering if anyone else has it going again.
Someone emailed me about a few compilations errors in TTsZipPackage last October and I had this as a reply:
MacCreator, MacType and MacFSRef were removed from FolderItem in 2019r2. You can probably tweak the conditional compilation part of the code like this to avoid the error:
Old:#If RBVersion >= 2010.05
New:#If RBVersion >= 2010.05 And RBVersion < 2019.02
The Readable interface had the method EndOfFile added. You can get rid of that error by adding an empty EndOfFile method to ZipBinaryStreamReader.
Not sure if this matches errors you are seeing, but hopefully this gets you started.