问题
IntelliJ IDEA started highlighting errors in some of my import statements that worked previously. This is not unexpected as net.corda.finance is still in the "incubating" stage.
I am working in Java.
Corda Release: 3.3
Noticed this change on github: https://github.com/corda/corda/pull/4700
So I made what I thought are the necessary changes...
//Old
//import static net.corda.finance.utils.StateSumming.sumCashBy;
//New
import static net.corda.finance.contracts.utils.StateSumming.sumCashBy;
...but I'm still getting an error. I am sure I must be overlooking something simple.
回答1:
@Kid101 put me on the right track by trying StateSumming.sumCashBy(contractState)
Once I did that IntelliJ recognized I needed to add:
net.corda:corda-finance:3.3-corda
...to the classpath. If I allowed IntelliJ to add it from the context menu the error reappeared every time gradle refreshed. So I added:
cordaCompile "$corda_release_group:corda-finance:$corda_release_version"
...to the build.gradle file under the dependencies section. No more errors with my import statement:
import net.corda.finance.utils.StateSumming;
...and no issues calling the sumCashBy method.
回答2:
The change you mention is in Corda master branch, In CashTests.kt you can see how sumCashBy is imported, import net.corda.finance.contracts.utils.sumCashBy.
In corda/release-V4-branchpoint import is still net.corda.finance.utils.sumCashBy i.e. the change has not made in yet to V4.
Try to build the project again.
If using Java, try: StateSumming.sumCashBy(contractState)
来源：https://stackoverflow.com/questions/54601576/unable-to-import-sumcashby-using-intellij-idea