RHS of #set statement is null. Context will not be modified. templates/plugins/jira/portlets/twodimensionalfilterstats.vm [line 4, column 1]

2005-02-21 08:58:57,105 ERROR [velocity] RHS of #set statement is null. Context will not be modified. templates/plugins/jira/portlets/twodimensionalfilterstats.vm [line 4, column 1]
2005-02-21 08:58:57,105 ERROR [velocity] RHS of #set statement is null. Context will not be modified. templates/plugins/jira/portlets/twodimensionalfilterstats.vm [line 4, column 1]
2005-02-21 09:25:16,199 ERROR [velocity] RHS of #set statement is null. Context will not be modified. templates/plugins/jira/portlets/twodimensionalfilterstats.vm [line 4, column 1]
2005-02-21 09:25:16,214 ERROR [velocity] RHS of #set statement is null. Context will not be modified. templates/plugins/jira/portlets/twodimensionalfilterstats.vm [line 4, column 1]
2005-02-21 09:28:25,574 ERROR [velocity] RHS of #set statement is null. Context will not be modified. templates/plugins/jira/portlets/twodimensionalfilterstats.vm [line 4, column 1]
2005-02-21 09:28:25,574 ERROR [velocity] RHS of #set statement is null. Context will not be modified. templates/plugins/jira/portlets/twodimensionalfilterstats.vm [line 4, column 1]
2005-02-21 09:28:28,902 ERROR [velocity] RHS of #set statement is null. Context will not be modified. templates/plugins/jira/portlets/twodimensionalfilterstats.vm [line 4, column 1]
2005-02-21 09:28:28,917 ERROR [velocity] RHS of #set statement is null. Context will not be modified. templates/plugins/jira/portlets/twodimensionalfilterstats.vm [line 4, column 1]