[4.1.1] ExtJS is complaining about missing files that aren't missing

[BillHubbard]

I occasionally get an error in the console:

Error: The following classes are not declared even if their files have been loaded: ''. Please check the source code of their corresponding files for possible typos: '

When I am able to catch the condition (which is intermittent), I see the following code in ext-dev.js for an onFileLoaded method:

                if (missingClasses.length < 1) {
                    return;
                }

                missingClasses = Ext.Array.filter(Ext.Array.unique(missingClasses), function(item) {
                    return !requiresMap.hasOwnProperty(item);
                }, Loader);

                // HERE!

                for (i = 0,ln = missingClasses.length; i < ln; i++) {
                    missingPaths.push(classNameToFilePathMap[missingClasses[i]]);
                }

                throw new Error("The following classes are not declared even if their files have been " +
                    "loaded: '" + missingClasses.join("', '") + "'. Please check the source code of their " +
                    "corresponding files for possible typos: '" + missingPaths.join("', '"));
            }

At the point marked "HERE!", missingClasses.length is zero, whereas prior to the assignment immediately above it, it was 2.
Apparently, there needs to be a check in here to return if missingClasses.length is zero, just as there is before missingClasses got redefined.

[mitchellsimoens]

Is there a way I can reproduce this?

[BillHubbard]

I wish I knew.

[BillHubbard]

It may be related to http://www.sencha.com/forum/showthre...ck-if-provided