When opening a .resx file in Visual Studio 2012, gives "The operation could not be completed. Invalid pointer" error

Question

I am trying to modify a resx file for a form after setting the form "MainForm" to be localizeable. When I try to open the file "MainForm.resx", it now gives the error "The operation could not be completed. Invalid pointer". I am running Visual Studio 2012.

Answer 1

I ran into this exact same issue and it turns out I had some invalid xml in my resx file.

I had the following:

<data name="UNIT_MEASURE_CUBE_S1" mimetype="ZONE">
    <value>U/M for Cube</value>
</data>

In the above mimetype was the invalid xml. I removed this so I was left with this:

<data name="UNIT_MEASURE_CUBE_S1">
    <value>U/M for Cube</value>
</data>

The way I was able to narrow this down was to remove half of the resources within the resx file save it and try to load it in visual studio. If that worked I knew the problem was in the last 1/2 of the xml. I continued to do this until I could narrow it down to a small section of the resx file. Eventually I found my issue.