[Users] encountering problem while running command

[Physics for everyone]

sir i have found the actual error please help me to resolve it. im
attaching the screenshot for your reference.

On Mon, 20 Jul, 2020, 2:21 am Roland Haas, <rhaas at illinois.edu> wrote:

> Hello,
>
> > im facing issue while running simple "Hello world command. im running it
> on
> > online sever. Please help me facing this issue. I am attaching the
> > screenshot for your reference.
> From the error message it seems the main executable is missing. Most
> likely there are some errors shown earlier in the notebook.
>
> You should try and re-run the part that reported an error, or, if that
> does not help, start from scratch by deleting the full Cactus checkout
> by executing these comnands in a new cell:
>
> %%bash
> rm -rf ~/Cactus
>
> then start the notebook from scratch.
>
> Yours,
> Roland
>
>
>
> --
> My email is as private as my paper mail. I therefore support encrypting
> and signing email messages. Get my PGP key from http://pgp.mit.edu .
>
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