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I'm testing the app on a htc desire z and after installing it I got my app icon but with a generic label "barcode scanner" instead of my app name. I tried to look in App profile, but I cannot find "barcode scanner".
Did you set a custom icon in Project Project Profile Android binary APK properties?
Yes. I set the label, but I left the Package name to:com.tiggzi.project31089. Should I change that too? but I cannot find anything like barcode, that why I was surprised to see it.
No the label but the icon. There is an option to upload a custom icon.
The package name is fine.
The icon is correct, it's the label associated with it that is wrong and reports "barcode scanner".
This is my configuration: 
If I open .apk file these are all the Barcode instances inside it (please note that my project has nothing to do with Barcode, no classes, no label. It must be something that PhoneGap or Tiggzi add to projects by defaults):
grep -R Barcode *
assets/html/about2d.html: Barcode Scanner also understands how to read two dimensional barcodes, like emQR
assets/html/index.html:Barcode Scanner Help
assets/html/index.html: Barcode Scanner uses the camera on your phone to read barcodes and look up product
assets/html/scanning.html: Barcode Scanner continuously scans a square region shown on your screen — just line up the
assets/html/sharing.html: In addition to a href="about2d.html" rel="nofollow"scanning 2D barcodes/a, Barcode Scanner can also
assets/html/whatsnew.html:What's new in Barcode Scanner
assets/www/res/lib/barcodescanner.js:var BarcodeScanner = function() {
assets/www/res/lib/barcodescanner.js:BarcodeScanner.Encode = {
assets/www/res/lib/barcodescanner.js:BarcodeScanner.prototype.scan = function(successCallback, errorCallback) {
assets/www/res/lib/barcodescanner.js: console.log("BarcodeScanner.scan failure: failure parameter not a function");
assets/www/res/lib/barcodescanner.js: console.log("BarcodeScanner.scan failure: success callback parameter must be a function");
assets/www/res/lib/barcodescanner.js: PhoneGap.exec(successCallback, errorCallback, 'BarcodeScanner', 'scan', []);
assets/www/res/lib/barcodescanner.js:BarcodeScanner.prototype.encode = function(type, data, successCallback, errorCallback, options) {
assets/www/res/lib/barcodescanner.js: console.log("BarcodeScanner.scan failure: failure parameter not a function");
assets/www/res/lib/barcodescanner.js: console.log("BarcodeScanner.scan failure: success callback parameter must be a function");
assets/www/res/lib/barcodescanner.js: PhoneGap.exec(successCallback, errorCallback, 'BarcodeScanner', 'encode', [{"type": type, "data": data, "options": options}]);
assets/www/res/lib/barcodescanner.js: PhoneGap.addPlugin('barcodeScanner', new BarcodeScanner());
Binary file classes.dex matches
/em
What do you have in General panel?
As of now the problem seems vanished.... good 
Glad it's working. Did you do the export again and re-installed?
I have the same Problem. Please Help