Extraction failed file is corrupt

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Extraction failed file is corrupt

Postby holmes1977 » Tue Sep 29, 2009 3:25 am

hi all
Just tried to download the lastest update (SU 7.1)
The file downloads ok, but when I go to run it. The install fails, and says Extraction failed file is corrupt

After some research on the net. I decided to try and use firefox instead of Win Explorer to download the file. I didnt have firefox installed on this computer. So I downloaded it, pressed run and the same message pops up.


Has anyone else had the same problem. :(
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Re: Extraction failed file is corrupt

Postby AndrewS » Tue Sep 29, 2009 8:53 pm

holmes1977 wrote:hi all
Just tried to download the lastest update (SU 7.1)
The file downloads ok, but when I go to run it. The install fails, and says Extraction failed file is corrupt
After some research on the net. I decided to try and use firefox instead of Win Explorer to download the file. I didnt have firefox installed on this computer. So I downloaded it, pressed run and the same message pops up.
Has anyone else had the same problem. :(


Jonathan,

The SketchUp installer is a self-extracting executable. It has a small amount of built-in checking to prove whether the extraction is completed properly. If it says there was a problem, that means during the process of downloading, some of the bits being sent from Google's download servers to your machine became corrupted. The only thing you can do is download it again from scratch and see if you have better luck the next time.

One option for ensuring the file is OK is to check its MD5 hash. If someone authoritative tells you what the MD5 should be, then you can run a program that performs a mathematical check on the file and produces a hash as output, which you can compare to the value you expect. If the value matches, your file is good. If the value does not match, you need to delete the download and try again.

I expect you're downloading Google SketchUp Pro 7.1 for Windows:
http://dl.google.com/sketchup/GoogleSketchUpProWEN.exe
The MD5 hash for that file is:
6cae8b7bcd469936273d3bd8d58cbf1d

If you get a free MD5 checker for Windows, you can run it on the file you download and see if you get the same string as above. If not, your file is corrupted and you need to re-download.

I've never tried the following MD5 programs, but they both look reasonable:
http://www.softpedia.com/get/System/File-Management/MD5-Checker.shtml
http://www.softpedia.com/get/Security/Security-Related/WinMD5Free.shtml

I hope this helps.
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Andrew S.
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Re: Extraction failed file is corrupt

Postby holmes1977 » Wed Sep 30, 2009 5:03 am

Thanks Andrew for the very well explained reply. :thumb:

You are right the MD5 hash is different
I downloaded the MD5 Check Utility. After checking the file I found out that the
MD5 hash is 42212ADAFD3330BD4A5AFD5B812CCED3
which is different from 6cae8b7bcd469936273d3bd8d58cbf1d

Ive tried downloading it again and again but keep getting the same results. Ive also tried 2 other computers on our network and get the same result. My next step is to try and download it from another location. then transport it back to my computer via usb stick. Hope that works. Just got a large job to do, which the update would help out truck loads.

I'll post back with the results.
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Re: Extraction failed file is corrupt

Postby AndrewS » Wed Sep 30, 2009 7:50 am

holmes1977 wrote:My next step is to try and download it from another location. then transport it back to my computer via usb stick. Hope that works. Just got a large job to do, which the update would help out truck loads.
I'll post back with the results.


Although tedious, I think your plan is a good one. You need to make sure you're able to download the file error-free and in its entirety before you're going to be able to install it. Using the MD5 hash is more reliable than relying on the self-extractor's built-in check, too, so I do believe you're on the right track.

I'll look forward to hearing how it goes.

Andrew
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Re: Extraction failed file is corrupt (HELP)

Postby holmes1977 » Fri Oct 02, 2009 4:16 am

Ok this is really confussing.

I got my partner to click the link http://dl.google.com/sketchup/GoogleSketchUpProWEN.exe
and download SU7.1 from her work computer.

To test it, I got her to make a copy and paste it into another file. She then double clicked on the downloaded file. It ran then came up with the same message. Extraction failed file is corrupt

Is there any other way to get hold of the SU7.1 upgrade. :?

HELP
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Re: Extraction failed file is corrupt

Postby holmes1977 » Fri Oct 02, 2009 5:52 am

Ok Im an idoit

I didnt turn off AVG and Win fire wall.

After that it downloaded fine.
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