I am facing with this error when making **arc diff --preview** command :
> ERROR 8: Undefined index: Repository UUID at [...]
**Possible similar issues:**
It seems is similar to this task: T10460, but I cannot make the error disappear.
**Reproduction Steps:**
I want to avoid the file .arcconfig, so I am setting the properties directly this way:
> arc set-config default <URI>
```
cat ~/.arcrc
```
{
"config": {
"default": "<URI>"
},
"hosts": {
"http:<URI>/api": {
"token": "<token>"
}
}
}
It seems I do not include the callsign of a repository. I tried to set properties like these ones without success:
> arc set-config repository.callsign <REPO CALLSIGN PREVIOUSLY DEFINED>
or
> arc set-config callsign <REPO CALLSIGN PREVIOUSLY DEFINED>
**The question if there is a way to do this and have this configuration in ~/.arcrc file**
**Versions**
arcanist 20ad47f2733135603d57b57be3e13422397e8071 (Fri, May 5)
phutil d02cc05931b02c684d4c729510090591ca45f951 (Sat, Apr 29)
Thanks in advance.
Juan