Cannot read property 'callFunction' of u
请问这中如何知道是啥问题呢？
Cannot read property ‘callFunction’ of undefined;at App _imageRect function;at api canvasToTempFilePath success callback function
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请问这中如何知道是啥问题呢？
Cannot read property ‘callFunction’ of undefined;at App _imageRect function;at api canvasToTempFilePath success callback function