GVM versions gsad: Greenbone Security Assistant 21.04.0~git-bc227c95b-master gvmd: Greenbone Vulnerability Manager 21.4.0~dev1~git-2cf31ef28-master openvas-scanner: OpenVAS 21.4.0~dev1~git-8befd17e-master gvm-libs: git-cloned from GitHub’s repo gvm-libs-20.08 Environment Operating system: CentO…

FYI - in fact, using the 20.08 branch fixes the issue and it is possible now to access the GSAD web GUI. Thanks and regards

Unexpected token < in JSON at position 0

cfi October 23, 2020, 11:26am 3

You have build the development / master versions, not the stable GVM-20.08 releases so the following comment should be valid as well: