Jenkins Permission denied

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Hi all,

Setting up an ubuntu server to build android roms using jenkins.

Whenever i run a job from jenkins, it shows Permission denied

Chmod and chown is not helping me coz the newly created folders have permission issues,

i've tried with chown the entire directory to jenkins and creating a user group and adding jenkins and users to it also not helping,

future folders and files is not using the permission from group, So jenkins is not able to make changes,

Any help would be appreciated.