Server responded with an error.

Questions
1

I migrate a SilverStripe 4.1.2 project into 4.7.0. After migration, it gives the "Server responded with an error. HashFileIDHelper::buildFileID requires an $hash value." error when goto the Files tab on the Admin side. Is anyone knows the reason for this error?

files%20issue
files%20issue1158×569 6.37 KB

Thank you.

2

Did you run any of the file migration tasks (in /dev/tasks). You might need to do that to generate the file hashes

3

I already tried the MigrateFileTask. However it gives the following log
Can not migrate Uploads/Front-v2.jpg / e325a47d8097a29a201581fc093eca356beb9fa4 because it does not exist on the “draft” stage [] []