we have a set of customized Thingworx extensions that we wrote before, they are working fine in previous thingworx versions, but when we started importing them into Thingworx 8.5.0-b12 we encountred very strange errors, for one extension there is no problem, but when we install the second one we have this error at run time and mashup design in the composer, could you advise us how we can fix this problem, because we have to transfer to the new Thingworx version and we can't if our widgets aren't working there.
