Every now and then, when dealing with BizTalk orchestrations, you might encounter issues you can’t explain. Things like the following, infamous error, may occur without any valid reason:
#error: Errors exist for one or more children
Even after fixing every error, you rebuild the project and/or solution, and the error is still not fixed…
You may know the issue when opening a BizTalk orchestration and it opens like this:
Note: I blurred the code to protect the name of my client.
Not much you can do about it, except right-clicking the orchestration and clicking ‘Open With…’ and choosing the BizTalk Orchestration Designer.
However, if you close the BizTalk Orchestration Designer again, and double-click the odx file, it once again opens in the first, yet useless, view.