TTFLoader 示例引入initCesium报错

[gisfinder]

尝试TTFLoader的例子，这个示例中引用了initCesium.js。initCesium代码里有一部分好像是固定路径，所以就会报错。
错误信息如下：
n error occurred while rendering. Rendering has stopped.
undefined
TypeError: Cannot assign to read only property 'red' of object '[object Object]'
TypeError: Cannot assign to read only property 'red' of object '[object Object]'
at Function.Color.clone (http://127.0.0.1:5502/ThirdParty/Cesium/Cesium.js:1:416833)
at o.updateSunLight (http://127.0.0.1:5502/ThirdParty/Cesium/initCesium.js:4:11247)
at o.update (http://127.0.0.1:5502/ThirdParty/Cesium/initCesium.js:4:14683)
at PrimitiveCollection.update (http://127.0.0.1:5502/ThirdParty/Cesium/Cesium.js:1:2049855)
at updateAndRenderPrimitives (http://127.0.0.1:5502/ThirdParty/Cesium/Cesium.js:1:3032387)
at executeCommandsInViewport (http://127.0.0.1:5502/ThirdParty/Cesium/Cesium.js:1:3030969)
at Scene.updateAndExecuteCommands (http://127.0.0.1:5502/ThirdParty/Cesium/Cesium.js:1:3027985)
at render (http://127.0.0.1:5502/ThirdParty/Cesium/Cesium.js:1:3040440)
at tryAndCatchError (http://127.0.0.1:5502/ThirdParty/Cesium/Cesium.js:1:3040677)
at Scene.render (http://127.0.0.1:5502/ThirdParty/Cesium/Cesium.js:1:3042540)
CesiumWidget.showErrorPanel @ Cesium.js:1
VM6:1 Blocked script execution in 'about:blank' because the document's frame is sandboxed and the 'allow-scripts' permission is not set.
e @ VM6:1
tdtVec.jpg:1 Failed to load resource: the server responded with a status of 404 (Not Found)
tdtImg.jpg:1 Failed to load resource: the server responded with a status of 404 (Not Found)
DevTools failed to load source map: Could not load content for http://127.0.0.1:5502/ThirdParty/Cesium/initCesium.min.js.map: HTTP error: status code 404, net::ERR_HTTP_RESPONSE_CODE_FAILURE