Undefined is not an object (evaluating 'this.v.N[a].ed')

[David Compton]

Just wondering if you would have any idea why we would be getting the following error coming through our log files:

TypeError: undefined is not an object (evaluating 'this.v.N[a].ed')
  at qf(/assets/pdftron/html5/CoreControls.js:645:225)
  at qf(/assets/pdftron/html5/CoreControls.js:1079:46)
  at Rg(/assets/pdftron/html5/CoreControls.js:976:358)
  at Yx(/assets/pdftron/html5/CoreControls.js:977:478)
  at cr(/assets/pdftron/html5/CoreControls.js:976:207)
  at sC(/assets/pdftron/html5/CoreControls.js:974:399)
  at QG(/assets/pdftron/html5/CoreControls.js:939:56)
  at ? (/build/main.js:69313:72)
  at wrapped(/build/main.js:193562:34)
  at runTask(/build/polyfills.js:3:10400)
  at invoke(/build/polyfills.js:3:16177)
  at e(/build/polyfills.js:2:30859)

The error is coming from WebViewer inside an Ionic App running on an iPad Pro with iOS 10.3.2.

Line 69313 in main.js has the following code:

viewerElement.bind('documentLoaded', function (event, data) {

if (self.webViewer.getPageCount() >= self.currentPageNo) {

self.webViewer.setCurrentPageNumber(self.currentPageNo);

}

self.annotManager = self.readerControl.docViewer.getAnnotationManager();

self.annotManager.on('annotationChanged', function (e, annotations, action) {

if (e.imported || !self.selectedNavItem) {

return;

}

var allAnnotations = self.annotManager.exportAnnotations();

self.dataService.saveAnnotations(self.selectedNavItem, allAnnotations);

});

if (self.selectedNavItem && !self.selectingNavItem) {

self.dataService.getAnnotations(self.selectedNavItem).then(function (annots) {

if (annots) {

setTimeout(function () {

self.annotManager.importAnnotations(annots.doc.xfdf);

self.annotManager.drawAnnotations(self.webViewer.getCurrentPageNumber(), null, true);

}, webViewerTimeout);

}

if (self.loading && !self.selectingNavItem) {

self.loading.dismiss();

}

});

}

// self.readerControl.$wrapper is undefined in desktop (html5) mode,

// it is only available in mobile (html5mobile) mode

if (self.readerControl.$wrapper) {

// Disable double tap when in free hand annotation mode

self.readerControl.$wrapper.off('dblclick');

self.readerControl.$wrapper.off('dbltap');

self.readerControl.$wrapper.off('doubletap');

self.readerControl.$wrapper.on('dblclick dbltap doubletap', function () {

if (self.readerControl.getToolMode() !== PDFTron.WebViewer.ToolMode.AnnotationCreateFreeHand) {

self.readerControl.onDoubleTap.call(self.readerControl, arguments[0]);

}

});

}

});

Kind regards,

David

[Justin Jung]

It's tricky to tell the root cause by just looking at the code.

When do you see the error message? Have you looked at the call stack to narrow down which line is causing it? Which specific line is 69313?

Justin Jung

Software Developer

PDFTron Systems Inc.

[David Compton]

Line 69313 is the first line in the code that I provided:

viewerElement.bind('documentLoaded', function (event, data) {

So that is as close as the call stack gets me to the problem.

Regards,

David

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[Justin Jung]

The error might be thrown when you try to access a page number that is out of bounds, such as in self.annotManager.drawAnnotations.

You might want to check if self.webViewer.getCurrentPageNumber() returns correct page numbers.

If it doesn't resolve the issue, then you would have to try commenting out lines to narrow down further.