Importing bugs in Primavera P6 versions

Lean Station
1 min readAug 3, 2021


Oracle Primavera P6 17.7 has a known bug that results in PMXML files not getting imported successfully.

The problem is that the import library is assuming that a valid Calendar ID is present for every task in the xml, and it does not invoke the code correctly to use the default Calendar if a task has no calendar associated with it.

The error will look something like below:

Primavera has openly reported a similar issue with importing MPP XML files as well.

The details can be found in this link:

There are other related errors logged related to import of XML files with P6 18.8 versions as well. Two main issues are described in the following links:


The import works in some versions of P6 and not in others. The operating system is also a factor in some cases as seen in the blog in the link below:

Please note that the primavera major and minor versions have to be checked before using it to import xml files.



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