MATLAB: Do I see an “error while validating” when using the Download Agent

MATLAB

When I go to download an .iso of the Windows R2008b disc image, I see the foloowing error message:

 There was an error while validating R2008b_Windows.iso.fake.  It appears that this file has been corrupted

Best Answer

This issue is currently under investigation.

Alternatively, you can download the products separately, rather than the entire disc image. If you need the disc image, please contact MathWorks at the link below:

http://www.mathworks.com/support/contact_us/index.html

Related Solutions

MATLAB: Do I receive an error when I use AVIREAD to read a MJPG compressed AVI file

The following documentation describes how a vision.VideoFileReader object can be used to read MJPG compressed AVI files.

Read video frames and audio samples from video file - https://www.mathworks.com/help/vision/ref/vision.videofilereader-system-object.html

For previous product releases, read below for any possible workarounds:

MATLAB is not able to read MJPG compressed AVI files using the AVIREAD function.

The file cannot be decompressed since it is compressed using MJPG. Since the codecs used to compress the video are DirectShow compatible, AVIREAD will not be able to decompress this video, since AVIREAD uses Video For Windows (VFW), which is an earlier technology than DirectShow.

Some customers have reported limited success with the following possible workarounds:

1. There is a commercially available version of an MJPG decompressor that works with the older VFW technology used by AVIREAD. A free trial version of this codec can be downloaded here:

https://www.accusoft.com/products/picvideo-m-jpeg-codec/get-it/

The full version of the decompressor requires purchasing it from Pegasus.

In some instances the colors may appear incorrect when using this decompressor. If you have run into this issue, then try swapping the R and B color plane using the following code:

m = aviread(filename); 
for ii = 1:length(m) 
    m(ii).cdata = m(ii).cdata(:,:,[2 3 1]); 
end

2. Another workaround is to convert the MJPG-file to an AVI-file using a conversion tool such as HandyAVI. The output movie is uncompressed, and MATLAB was able to read it. More information regarding this converter can be found at the following web address:

http://www.astroshow.com/handyavi/handyavi.htm

MATLAB: Do I get an error “failed to validate certificate” when running the download agent

If you receive this error, this could be due to an untrusted publisher certificate file. To workaround the error, please follow the steps below depending on your Operating System:

Windows:

1) Open Control Panel

2) Click on the Java icon to open the Java Control Panel

3) Click on the Advanced tab and then Security (+) box

4) Click on the General (+) box

5) Click the box for "Enable list of trusted publishers"

6) Close out of the Java Control Panel and try re-launching the download agent.

If the error persists, please delete the trusted.certs file in the path:

%userprofile%\AppData\LocalLow\Sun\Java\Deployment\security\

Mac OS X:

1) Open Applications - Utilities

2) Open Java Preferences.app

3) Click on the Advanced tab

5) Click the box for "Enable list of trusted publishers" under the "Security" section

6) Close out of the Java Preferences application and try re-launching the download agent.

If you still get an error, please use the manual download method.

Best Answer

Related Solutions

MATLAB: Do I receive an error when I use AVIREAD to read a MJPG compressed AVI file

MATLAB: Do I get an error “failed to validate certificate” when running the download agent

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