ZIP File Is Invalid? 5 Methods to Fix Invalid ZIP File Error – Question Info
Used WinRar’s test feature, and it said that the file did not contain any errors and happily opened it and was able to uncompress it, then tried to open with Windows Explorer and the same error was shown “test. The problem is that the zip file is starting with 3 extra bytes, as the Linux unzip told you. A space and a windows newline 0x20 0x0d 0x0a. This can happen if for instance the generating PHP script contains a comment block with a new line before the first PHP start tag.
It is not the first time I see something like this, and will probably look into seeing if I can force a buffer clear before starting the Zip file. Hmm I couldn’t find any of my php files starting with a newline instead the php tag. Hopefully that is relevant to the issue at hand. I’ll take a look on the library and see if I can find a way to do the buffer cleanup and hopefully get rid of this problem.
I’ll send in the patch if it works. I recreated the issue, if not the cause in ZipStream. Had your code added those before calling new ZipStream CMS entries may or may not have a dedicated directory with additional contents, some entries are just a page itself with nothing else, as you can see there are two paths, one that creates the zip directory or one that just adds the html for simple entries. This is how my function looks like:. I just noticed something that I oversighted.
On Chrome, you can see the request done to retrieve the zip file on the network tab of the developer tools. However, for me it’s in red, the status says “canceled” and the size does not seems right, in the next example the size of the zip file should be around the kb:.
Apparently since both the framework and the library toys around with the HTTP headers and the ZipStream::finalize methond apparently is handling the sending functionality to the client, I think something is conflicting around there, is that a possible cause?
I’ll keep looking the next few days and see if I can come up with something. To understand the last bit first, you have to realize how ZipStream ZS works, compared to the regular Zip class. ZS builds the zip file on the fly, and sends it to the user as it is built, one zip entry at a time, so ZS have no way of knowing how large the end result is going to be when it sends the initial HTTP header. When you build a zip, each file or directory is an entry, and ZipStream will send these entries to the user as they are made.
Finalize writes the CD record. The problem of the stream being cancelled is baffling me, but may be because I send the header in the ZipStream constructor, followed by a flush command. It shouldn’t have been an issue though. So for the problematic 3 bytes to be where they are, they would have had to have been added between the constructor as it’ll die with an error message if the output buffer had any data before being called and the first zip entry being added.
In the mean time I’ll test the code on Chrome to see what it is doing. I found out the problem. It’s basically what you said, a new line in the beginning of the file, but it’s subtler than a lost php tag. I was working on something else related to JSON responses, and I noticed on the chrome dev tool that the request response actually had a new line on the beginning! I had no clue why was that it didn’t affect anything on the functionality as it was being parsed correctly, but that empty line puzzled me so I took a look on other sections of the page and to my surprise every single request contained a new line in the beginning, be it HTML, JSON, XML, even ZipStream.
I don’t have a clue why, where and what is causing that new line but based on your comments, I believe that it’s the cause of the problem. With that said, should I close this issue or do you plan on implementing a buffer clear and would like to keep track of this?
I tried to implement a buffer clear, and it didn’t work, the problem is that the only time I actually can do it, is when the constructor is called, after that the buffer may contain data belonging to ZipStream, so I can’t risk clearing it before starting a new Zip entry. The weird bit is that the problem isn’t in the initial php file calling the ZipStream, as it would have resulted in an error from ZipStream. I can think of a potential solution, but it would require a variable to keep track, and it would be a hack that may not even solve the problem at hand.
A PHP file having an extra new line at the end is easy to miss. I’ll keep it open for a few more days to see if I can come up with something. But finding your cause is important as well, as it may affect any binary files generated. That you get an error, and then can open the file in WinRar is because WinRar is actually a pretty awesome piece of software, as it can, to a point, figure out a Zip file, even if it contains errors. I need to know more about how your code is structured. That it can’t fins the ZipStream class is, I guess, that the include is pointing to the wrong directory.
Skip to content. New issue. Jump to bottom. Copy link. We are unable to convert the task to an issue at this time. Please try again. The issue was successfully created but we are unable to update the comment at this time. This tool is freeware and can handle most archived files. If your ZIP-file is corrupted or contains inconsistencies, you may need to repair the file.
One great free tool to repair on Windows is Object Fix Zip. Another option is, if you have one, to use a Mac. You may also be able to re-download the ZIP-file, if from the internet. Corrupted ZIP-files are often caused by unfinished downloads. In addition, make sure you have sufficient free disk space on your drive! Often underestimated, a ZIP-file from the internet may very well contain malware, ransomware, or whatsoever.
Your antivirus software Norton, Windows Defender, e.
Fix: Unable to Open ZIP Files in Windows 10 – Windows 10 Free Apps | Windows 10 Free Apps – Part 1. Redownload or Restore Missing ZIP Files
replace.me › Windows. 1. Reinstall the File Compression Tool · Press Win + R to open the Run command dialog box. · Type replace.me and click on OK to open the Programs.
Windows 10 zip folder invalid free download
Was this reply helpful? Yes No. Sorry this didn’t help. Thanks for your feedback. The issue I’ve seen has nothing to do with the extraction program itself, windoss it’s the zip files downloaded in Internet Explorer and Edge.
Try downloading the file s again in Chrome or Opera and they should open fine. I know this thread is really old already Choose where you want to search below Search Search the Community. Search the community and support articles Windows Windows 8 Search Community member.
Tristan Hinman. The other day, I was downloading several. I noticed later that all of the. After experimenting, I have determined the following.
My computer can still open. The browser used to download does not seem to make a difference. Winrar can, but says that the archive is corrupt when attempting to extract the files. I am quite baffled by this and would appreciate any advice. This thread is locked. Windows 10 zip folder invalid free download can follow zup question or vote as helpful, but you cannot reply to this zi.
I have the same question Report abuse. Details required :. Cancel Submit. SpiritX Volunteer Moderator. Hi, Have you tried downloading other ZIP files from other sites? All of those might actually windows 10 zip folder invalid free download corrupted.
Do you have low drive space? Create a new folder then try downloading to it. WinRAR could be the issue. You might try disabling and then re-enabling the ZIP Folder. How satisfied are you with this reply? Thanks for your feedback, it helps us improve the site.
In reply to SpiritX’s post on November 4, I am onvalid the same problem. I know the exact same problem. I know that it is not the website because I have downloaded zip files from several websites today, and I get the same answer from all of ссылка. A also have 7Zip installed on my computer. Please respond quickly! In reply to cjsn6’s post on Foldet 26, I do not know what caused it, but I was able to fix it by reinstalling the software.
Windows 10 zip folder invalid free download vownload noticed that it was not just affecting. Follder do not know what caused it, but it was relatively easy http://replace.me/12371.txt fix. Sean PT. This site in other languages x.