CordovaError: Promise rejected with non-error: Error code 65

Q.ninvoke(fs, "readfile", "foo.txt", "utf-8").done(function(data){
    console.log('all good');
}, function(err) {
    throw new Error('I want to throw this exception');
}); // or omit the error handler, and 'err' will be thrown

Promise.reject("Testing static reject").then(function(reason) {
  // not called
}, function(reason) {
  console.log(reason); // "Testing static reject"
});

Promise.reject(new Error("fail")).then(function(error) {
  // not called
}, function(error) {
  console.log(error); // Stacktrace
});

ionic cordova build ios -- --buildFlag="-UseModernBuildSystem=0"

throw 42;

throw new Error('An actual error');

.fail(function(jqXHR, textStatus, errorThrown ) {
  reject(new Error(errorThrown));
}