Issue Transfer Does not Work

[DaGeRe]

I tried to transfer issues from https://github.com/DaGeRe/peass-ci to https://github.com/jenkinsci/peass-ci-plugin. Unfortunately, transferring the issues by ./gh-issues-import-ng.py --all did not work:

Loaded options from default config file in '/home/reichelt/nvme/workspaces/dissworkspace/permanent/github-issues-import-ng/config.ini'
source server is 'github.com'
source api_url is 'https://api.github.com/repos/DaGeRe/peass-ci'
target server is 'github.com'
target api_url is 'https://api.github.com/repos/jenkinsci/peass-ci-plugin'
You are about to add to 'jenkinsci/peass-ci-plugin':

• 26 open issues
• 82 closed issues
• 6 pull requests
• 70 new comments
• 0 new milestones
• 1 new labels
  Are you sure you wish to continue? [Y/n] Y
  DEBUG: 'target' could not execute a webhook request with json. Type is 'labels'.
  HTTP ERROR 404: Unable to find the specified repository.
  Double check the spelling for the source and target repositories. If either repository is private, make sure the specified user is allowed access to it.

My configuration looked like this:

[source]
system     = github
server     = github.com
repository = DaGeRe/peass-ci
username   = DaGeRe
password   = ***

[target]
server     = github.com
repository = jenkinsci/peass-ci-plugin
username   = DaGeRe
password   = ***

From my point of view, this configuration should work, since I have access to both repositories. After I tried this with another repository (https://github.com/DaGeRe/issuetest), but this showed the same behaviour.

Is there a workaround for the problem that the issues may not be created?