Update powerbi-visuals-tools and add Dataview Utils as follows.
npm install -g powerbi-visuals-tools
"node_modules/powerbi-visuals-utils-dataviewutils/lib/index.d.ts", "node_modules/powerbi-visuals-utils-formattingutils/lib/index.d.ts",
"node_modules/powerbi-visuals-utils-dataviewutils/lib/index.js", "node_modules/powerbi-visuals-utils-formattingutils/lib/index.js",