Brpoc add on problem on import package

hey there, appreciate help me on this as im new in bproc.addon.
Im using bproc trial version. when i try to build the project, import package error will display whish is “error: package com.haulmont.addon.bproc.web.processform does not exist
import com.haulmont.addon.bproc.web.processform.ProcessFormContext;”.

*note: already uninstall and install bproc. BPM not install.
i wish you could help me as im running out of idea.

Thanks in advanced.

you’re probably trying to use the ProcessFormContext class in the core module of your project. However, this class is located in the web module of BProc add-on, so you can use it in web module only.