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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(198.4, 1%, 29%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ELD%3C/text%3E%3C/svg%3E)
I need assistance troubleshooting an issue that has been troubling me for a week,
When building a cross-platform Linux program using CMake in Visual Studio, an error message window pops up during runtime with the message "Unable to start debugging. Unable to establish a connection to GDB. Debug output may contain more information."
After clicking "OK", a new error message window appears with the message "Operation aborted (Exception from HRESULT:0x80004004(E_ABORT))."
The Linux platform information:
The cross-platform log:
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(249.60000000000002, 10%, 34%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAX%3C/text%3E%3C/svg%3E)
Hello, which version of Visual Studio are you using? Did you add a remote connection to the connection manager? Please ensure that the GDB server is properly installed on the remote machine. And check if the anti-virus software or firewall is blocking the connection to GDB. If it persists, could you please share us more detailed information in the Output window?
Microsoft Visual Studio Community 2022 (64-bit) - Current Version 17.8.4 Yes, I added a remote connection to the connection manager, and when I manually ran the executable built through Visual Studio on the remote machine, it worked fine. Additionally, I installed the GDB server on the remote machine. There is no antivirus software or firewall on the remote machine. Output window:
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(80, 84%, 17%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EA%3C/text%3E%3C/svg%3E)
ditto here... was there ever a resolution?
I am experiencing the same exact symptoms. ssh and everything is setup properly, verified by a successful build. When attempt to debug, it fails per what @Lionel Dong has outlined, E_ABORT 0x80004004. Was there any resolution?
I click OK and see the following second message box...
PS: Unrelated to above problem report, I just posted that problem report before this post but after clicking "Add comment," the comment entry forum dismissed/disappeared, after which the comment did not appear, and there were no messages (i.e., no messages like "your comment will appear if approved"). I've not seen that UX online here before ... I am reposting with this comment, forgive any duplicates, UX seemed odd, FYI.
Very strange. I tried several times before posting here. I had even modified the config to use env "DISPLAY: ":0" per the below config... this was not shown in my previous comment because I had reverted when it, at first, did work. Just after posting my comment above, I tried adding back the ":0" per below... right-clicked, Debug, and the app popped up in the Ubuntu desktop... so seems to be working now... not sure if issue is one time only, or if intermittent, but fyi this seems to be working for me now. Thanks.
{
"version": "0.2.1",
"defaults": {},
"configurations": [
{
"type": "cppgdb",
"name": "AppBasicExampleGui (examples\\BasicDemo\\AppBasicExampleGui)",
"project": "CMakeLists.txt",
"projectTarget": "AppBasicExampleGui (examples\\BasicDemo\\AppBasicExampleGui)",
"comment": "Learn how to configure remote debugging. For more info, see http://aka.ms/vslinuxdebug",
"debuggerConfiguration": "gdb",
"MIMode": "gdb",
"args": [],
"env": { "DISPLAY": ":0" }
}
]
}
Well, I'm not sure the "env" setting made any difference... it may have been a single intermittent success (unrelated to the env setting). It's not working after that one time. I've tried both with and without "env" and also after rebooting ubuntu.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(204.8, 1%, 29%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ERB%3C/text%3E%3C/svg%3E)
I actually posted a bug on this with Microsoft, but as usual it was rejected for lack of sufficient information. I ended up falling back to VS2019. Even if you install VS2022 alongside VS2019, this error occurs. No idea why, but for now my advice would be use only VS2019, and do not install VS2022. I think if you would use an older release (my guess is before 17.5), it would still work. But that will make you end up with roughly the same features as VS2019 supports.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(12.8, 82%, 11%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAA%3C/text%3E%3C/svg%3E)
Exactly the same issue here
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(41.6, 90%, 14%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ES%3C/text%3E%3C/svg%3E)
Same issue too.