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# Getting stacktrace with gdb #
If the problem when running Flowblade happens when native code is executed, the information needed to debug the issue can usually be collected using a program called **gdb**.
## Steps ##
**1. Install gdb debugger.**
To install **gdb** give command on terminal:
```
sudo apt-get install gdb
```
and give your password to allow install to take place.
**2. Run gdb on python interpreter running Flowblade**
On terminal give command:
```
gdb python
```
This starts gdb running python interpreter. Now you need to run Flowblade inside debugger. You'll see text (gdb), this is the command prompt for debugger. Now give command:
```
run /usr/bin/flowblade
```
This runs Flowblade. After program has crashed give command:
```
backtrace
```
**3. Copy/paste output to a text file**
Use mouse to select printed output on terminal, and press SHIFT+CONTROL+C to copy text.
Open a text file and paste text - with CONTROL+V or SHIFT+CONTROL+V - into it, and provide the text file as an attachment with the Issue report or comment.
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