"there's a problem with the report theme" Error Message

[gooranga1]

I have had a theme for about 4 years which I have used in all our power bi files with no problem I have just upgraded to the latest version of Power BI and when I try to use the theme I get an error box that doesn't even have an ok button visible to cancel the message.

{
   "name":"Company",
   "dataColors":[
      "#004E9B",
      "#36BCEE",
      "#00B388",
      "#4B4F54",
      "#F5C040",
      "#05E0DB",
      "#FD625E",
      "#ba3b32",
      "#5BD0B0",
      "#54D028",
      "#D0F540",
      "#057BE0",
      "#FB8281",
      "#F4D25A",
      "#7F898A",
      "#A4DDEE",
      "#FDAB89",
      "#B687AC",
      "#28738A",
      "#A78F8F",
      "#168980",
      "#293537",
      "#BB4A4A",
      "#B59525",
      "#475052",
      "#6A9FB0",
      "#BD7150",
      "#7B4F71",
      "#1B4D5C",
      "#706060",
      "#0F5C55",
      "#1C2325"
   ],
   "background":"#FFFFFF",
   "foreground":"#4584D3",
   "tableAccent":"#31B6FD",
   "textClasses":{
      "callout":{
         "fontSize":30,
         "fontFace":"Calibri"
      },
      "title":{
         "fontSize":10,
         "fontFace":"Calibri",
         "color":"#FFF"
      },
      "header":{
         "fontSize":10,
         "fontFace":"Calibri",
         "bold":true
      },
      "label":{
         "fontSize":10,
         "fontFace":"Calibri",
         "color":"#FFF"
      }
   },
   "visualStyles":{
      "pivotTable":{
         "*":{
            "subTotals":[
               {
                  "rowSubtotals":true,
                  "columnSubtotals":true,
                  "fontColor":{
                     "solid":{
                        "color":"#FFF"
                     }
                  },
                  "backColor":{
                     "solid":{
                        "color":"#44B2E8"
                     }
                  },
                  "fontFamily":"Calibri",
                  "bold":false,
                  "fontSize":10,
                  "applyToHeaders":true,
                  "rowSubtotalsPosition":"Top",
                  "perRowLevel":false,
                  "perColumnLevel":false
               }
            ],
            "values":[
               {
                  "fontFamily":"Calibri",
                  "fontSize":10
               }
            ]
         }
      },
      "*":{
         "*":{
            "*":[
               {
                  "fontFamily":"Calibri"
               }
            ],
            "header":[
               {
                  "show":true,
                  "fontColor":{
                     "solid":{
                        "color":"#FFF"
                     }
                  },
                  "background":{
                     "solid":{
                        "color":"#215AA8"
                     }
                  }
               }
            ],
            "title":[
               {
                  "show":true,
                  "fontColor":{
                     "solid":{
                        "color":"#FFFFFF"
                     }
                  },
                  "background":{
                     "solid":{
                        "color":"#215AA8"
                     }
                  }
               }
            ],
            "grid":[
               {
                  "outlineColor":{
                     "solid":{
                        "color":"#215AA8"
                     }
                  }
               }
            ],
            "columnHeaders":[
               {
                  "fontColor":{
                     "solid":{
                        "color":"#FFF"
                     }
                  },
                  "backColor":{
                     "solid":{
                        "color":"#215AA8"
                     }
                  },
                  "bold":true,
                  "fontSize":10
               }
            ],
            "rowHeaders":[
               {
                  "fontColor":{
                     "solid":{
                        "color":"#FFF"
                     }
                  },
                  "backColor":{
                     "solid":{
                        "color":"#215AA8"
                     }
                  },
                  "stepped":false
               }
            ],
            "subTotals":[
               {
                  "rowSubtotals":true,
                  "columnSubtotals":true,
                  "fontColor":{
                     "solid":{
                        "color":"#FFF"
                     }
                  },
                  "backColor":{
                     "solid":{
                        "color":"#44B2E8"
                     }
                  },
                  "fontSize":11,
                  "fontFamily":"Calibri",
                  "applyToHeaders":false,
                  "rowSubtotalsPosition":"Top",
                  "perRowLevel":false,
                  "perColumnLevel":false
               }
            ],
            "total":[
               {
                  "fontColor":{
                     "solid":{
                        "color":"#FFF"
                     }
                  },
                  "backColor":{
                     "solid":{
                        "color":"#4B4F54"
                     }
                  },
                  "fontSize":11
               }
            ],
            "rowTotal":[
               {
                  "fontColor":{
                     "solid":{
                        "color":"#FFF"
                     }
                  },
                  "backColor":{
                     "solid":{
                        "color":"#4B4F54"
                     }
                  },
                  "fontSize":12,
                  "fontFamily":"Calibri"
               }
            ],
            "values":[
               {
                  "fontColorPrimary":{
                     "solid":{
                        "color":"#215AA8"
                     }
                  },
                  "fontColorSecondary":{
                     "solid":{
                        "color":"#215AA8"
                     }
                  },
                  "fontSize":10
               }
            ],
            "categoryAxis":[
               {
                  "concatenateLabels":false
               }
            ],
            "border":[
               {
                  "color":{
                     "solid":{
                        "color":"#215AA8"
                     }
                  },
                  "show":true,
                  "radius":5
               }
            ],
            "visualTooltip":[
               {
                  "titleFontColor":{
                     "solid":{
                        "color":"#FFFFFF"
                     }
                  },
                  "valueFontColor":{
                     "solid":{
                        "color":"#FFFFFF"
                     }
                  }
               }
            ],
            "targetLabel":[
               {
                  "fontColorPrimary":{
                     "solid":{
                        "color":"#000000"
                     }
                  },
                  "fontColor":"#000000"
               }
            ]
         }
      }
   }
}

this is the theme code which has alwats worked previously. Anyone spot abything I am doing wrong here? 

[gooranga1 · Accepted solution]

ok it looks like this block is the culprit

   "textClasses":{
      "callout":{
         "fontSize":30,
         "fontFace":"Calibri"
      },
      "title":{
         "fontSize":10,
         "fontFace":"Calibri",
         "color":"#FFF"
      },
      "header":{
         "fontSize":10,
         "fontFace":"Calibri",
         "bold":true
      },
      "label":{
         "fontSize":10,
         "fontFace":"Calibri",
         "color":"#FFF"
      }
   },

. Once removed it will now import ok. Just in case anyone runs into this. 

[v-yiruan-msft]

Hi @gooranga1 ,

It's glad to hear that your problem has been resolved. And thanks for sharing your solution here. Could you please mark your post as Answered? It will help the others in the community find the solution easily when they face the same problem as yours.  Thank you.

Best Regards

[Sjoerd_g]

To be honest, that isn't much of a solution or explanation for why themes that have worked for ages suddenly don't work anymore. 

I have the same with all my themes, and I don't want to delete blocks of theme settings that have always worked. Why are "additional properties" suddenly not allowed?