No "tools" button_missing package

[cruzer001]

Package "gir1.2-peas-1.0" is missing from the ubuntu-mate-core metapackage. This will not allow the tools button to appear in the toolbar when plugins are present.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: pluma 1.20.0-0ubuntu1
ProcVersionSignature: Ubuntu 4.15.0-10.11-generic 4.15.3
Uname: Linux 4.15.0-10-generic x86_64
ApportVersion: 2.20.8-0ubuntu10
Architecture: amd64
CurrentDesktop: MATE
Date: Tue Mar 20 22:11:41 2018
InstallationDate: Installed on 2018-03-11 (9 days ago)
InstallationMedia: Ubuntu-Server 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180223)
SourcePackage: pluma
UpgradeStatus: No upgrade log present (probably fresh install)