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Why do I receive a "java.io.IOException: Input is not in the .gz format" error in my installer log file when I try to install the Communications System Toolbox Support Package for RTL-SDR Radio?

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MathWorks Support Team
MathWorks Support Team on 24 Jan 2017
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Edited: MathWorks Support Team on 2 Jan 2020
When installing the RTL-SDR Radio Support Package, I see the following error:
There was a problem installing the third-party software. To resolve this issue, contact Technical Support
I also see the following inside of my MATLAB installer log file:
java.io.IOException: Input is not in the .gz format
How can I proceed with installing this Support Package?

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Accepted Answer

MathWorks Support Team
MathWorks Support Team on 14 Jun 2018
Edited:MathWorks Support Team on 14 Jun 2018
This is a known issue. The download of libusb and pkg-config software fails during installation. However, if the software is downloaded manually, the installation proceeds without errors using these workflows:
For MATLAB R2016a , follow these steps:
  1. Locate the folder where the software was downloaded. It should be under the "Downloads" folder under the folder "MathWorks\SupportPackages\R2016b\archives\3p".
  2. In this folder locate libusb.instrset* folder.
  3. Download libusb version 1.0.18 to this folder (MathWorks\SupportPackages\R2016b\archives\3p\libusb.instrset*) from "", replace the old file that was inside the folder.
  4. In the "MathWorks\SupportPackages\R2016b\archives\3p" folder locate the pkg-config.instrset* folder.
  5. Download pkg-config from "" to this folder, replacing the old file as well.
  6. Retry the installation of the RTL-SDR support package
For MATLAB R2016b , follow these steps:
  1. Locate the folder where the software was downloaded. It should be under the "Downloads" folder under the folder "MathWorks\SupportPackages\R2016b\archives\3p".
  2. In this folder locate libusb.instrset* folder.
  3. Download libusb version 1.0.18 to this folder (MathWorks\SupportPackages\R2016b\archives\3p\libusb.instrset*) from "", replace the old file that was inside the folder.
  4. In the "MathWorks\SupportPackages\R2016b\archives\3p" folder locate the pkg-config.instrset* folder.
  5. Download pkg-config from "" to this folder, replacing the old file as well.
  6. Retry the installation of the RTL-SDR support package
If you are still experiencing problems, 接触Technical Support .
1 Comment
Evariste Some
Evariste Some on 20 Jun 2017
I am currently running into the same problem. My installation get stack to the third party. I have tried the above solution but it didn't work. OS: windows 7, Matlab: 2016b

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更多的Answers (1)

ZendX
ZendX on 3 Mar 2017
Edited:MathWorks Support Team on 2 Jan 2020
Any new known issues with this package? (Communications System Toolbox Support Package for RTL-SDR Radio version 16.2.2 )
Problem installing "Third-Party Packages".
"There was a problem installing the third-party software. To resolve this issue, contact Technical Support", without details.
rtlsdrprecompiledlib.instrset_win64_1477034903.zip contains xml with a broken (again?) link to
sdr.osmocom.org/trac/raw-attachment/wiki/rtl-sdr/RelWithDebInfo.zip
I have downloaded this file from http://osmocom.org/attachments/download/2242/RelWithDebInfo.zip (same md5 sum), placed in Downloads\MathWorks\SupportPackages\R2016b\archives\3p\rtlsdrprecompiledlib.instrset_win64_1477034903
- but problem not solved.
At this time i have have no errors, but installation is never ends.
1 Comment
Kyle Perry
Kyle Perry on 31 Mar 2017
If the your install is hanging at "Installing Third-Party Packages" and you have tried to restart it already then please contact support so we can assist.
//www.tatmou.com/support/contact_us/

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