What is the test for reversing a conviction for assault with a deadly weapon?

Appellant's contention on appeal is that the trial court lacked jurisdiction to convict him of assault with a deadly weapon, a violation of section 245 subdivision (a) of the Penal Code. He argues that since the offense was not alleged in the petition and since that offense does not constitute a necessarily included offense to the crime alleged, attempted murder, his conviction must be reversed. ¹ Under the teaching of People v. Wolcott (1983) 34 Cal.3d 92, 192 Cal.Rptr. 748, 665 P.2d 520, we agree.