# Troubleshooting

{% hint style="danger" %}
**Error:** self signed certificate in certificate chain\
\&#xNAN;*Source:* *backend, nodemailer*
{% endhint %}

{% hint style="success" %}
**Solution:** Something is blocking the mailing server from establishing a TLS connection with Google's SMTP server. Disabling the antivirus can help prevent such error.
{% endhint %}

{% hint style="danger" %}
**Error:** An unhandled exception occurred: Job name "..getProjectMetadata" does not exist.\
**Error:** An unhandled exception occurred: Cannot read property 'Minus' of undefined.
{% endhint %}

{% hint style="success" %}
**Solution:** Your global angular installation and your local one are conflicting. Make sure that you have the same angular version installed (globally and locally) or remove the global angular installation by running:

```
npm uninstall -g @angular/cli
npm cache clean --force
```

{% endhint %}
