panic: runtime error: invalid memory address or nil pointer dereference

[Fwhirlwind]

Hello! Thank you for your excellent open source project. When I debug the line "./DistSys -i=1 -t=5 -d=creditcard -c=0", I report an error prompt "panic: runtime error: invalid memory address or nil pointer dereference", and I also report an error when compiling python 2.7.12. Could you provide relevant solutions and the detailed environment you use? I really appreciate it.

[bestchai]

Hi, thanks for using our project. This looks like it could be a problem with the go version that you are using, or some other dependency.

Have you installed your environment following the azure-install.sh script in the repo?
https://github.com/DistributedML/Biscotti/blob/dfba71b3924e1bafd2ab2545881fb741193f224e/azure/azure-setup/azure-install.sh

[Fwhirlwind]

Hello, I have installed my environment following the azure-install.sh script and have installed python2.7.12, but it still reports the error in the Figure 1, namely "panic: runtime error: invalid memory address or nil pointer dereference". Could it be a problem with the system version or the go-python library version used? I am using Ubuntu 18.04 now, could you please provide the detailed system version you were using at that time? I would be very grateful if it was possible.

[bestchai]

For our experiments we used the following image:
imagename='Canonical:UbuntuServer:16.04-LTS:16.04.201909091'

And Azure VM type:
vmtype='Standard_A4m_v2'

If you have access to azure, I'd recommend trying to replicate the setup there, since that's the env we were using.

[crq12138]

I also have the same question, which is displayed as: "panic: runtime error: invalid memory address or nil pointer deference". I have installed the experiment-related environment according to the azure-install file. Has author solved it? How was it solved? My ubuntu system version number is 22.04, is that okay?