I'm using the Create Site Collection task to provision site collections based on a custom developed web template (not site definition) deployed via a Farm solution. When creating a new site collection I get this error message:
<nativehr>0x81070211</nativehr><nativestack></nativestack>Cannot open file "_catalogs/solutions/[name of the web template].wsp".
This worked fine with Nintex 126.96.36.199 and does not work in 188.8.131.52. Also site collections can be created without any problems via SharePoint UI. Actually downgrading to Nintex 184.108.40.206 solves the issue (but is not really an option). So, this seems like a bug that was introduced after version 220.127.116.11.
Please help :-)!