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GDB prompt not read / launch error (Momentics / Command line)
 
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Applicable Environment
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  • Topic: GDB won't start, "GDB prompt not read."
  • SDP: 7.0.0
  • Target: Windows 10
NOTE: Applicable Releases at time of publishing: 7.0

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Issue / Question
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GDB not starting up, comes up with the error:

In Momentics, the following error messages will pop up:
"Error in final launch sequence."
"GDB prompt not read."

From the command line, you will see the following error:
"The code execution cannot proceed because python27.dll was not found. Reinstalling the program may fix this problem."

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The purpose of this is to address a relatively common issue when trying to debug code. Both at IDE or command line, there have been instances where trying to launch GDB is failing.

The issue is related to the latest Python 2.7 tools QPKG, which is missing some modules. This is located in the QNX SDP Host Tools.


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Solution / Recommendation
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As a workaround, please downgrade the following package to the respective build. You can do this by going into QNX Software Center, right clicking on the package and selecting "Downgrade". Selecting the proper build, and this should hopefully restore the files you need to run gdb.

Tools - Python 2.7 (Windows 64-bit)

Please downgrade FROM 7.0 BuildID 6130 - October 5, 2020 TO 7.0 BuildID 1037 - April 10, 2019

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NOTE: This entry has been validated against the SDP version listed above. Use caution when considering this advice for any other SDP version. For supported releases, please reach out to QNX Technical Support if you have any questions/concerns.
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