  The original paper (hep-th/9209020) contains an early example of gauge
mediated supersymmetry breaking motivated by string model building. In this
erratum we point out an important misprint in the abstract of the published
version (Phys. Lett. B295 (1992) 219) which may confuse the reader. We also
correct the computation of scalar masses and the numerical examples.
Qualitative results remain the same.
