With the release of PLAXIS 2D AE and PLAXIS 3D 2013, the data format and data specifications were updated to allow for a more robust and flexible data structure, especially for pore pressures data. Reading in PLAXIS results made with older versions (2D2012/Classic and earlier, 3D2012 and earlier) is no longer possible due to this incompatible data format.
Whenever results are read in that are not compatible with the current Output program, the PLAXIS Output program will give a warning why this fails.
When the project has been created using an older, incompatible version of PLAXIS 2D or PLAXIS 3D. To view the results for this project file, use an older version of PLAXIS Output. Here, xx refers to the internal file version.
For projects made with PLAXIS 3D2012 or earlier, please use the Output version attached below.
When the project has been created using a newer, incompatible version of PLAXIS 2D or PLAXIS 3D. To view the results for this project file, use a newer version of PLAXIS Output. Here, xx refers to the internal file version.
Whenever a PLAXIS 2D project will be opened using PLAXIS 3D Output (and vice-versa). Please use the original Output program of the corresponding PLAXIS version, i.e.
Legacy projects are PLAXIS 2D files made with PLAXIS 2D Version 8 and Version 9. Please use PLAXIS 2D Classic’s Output program (or earlier versions) to view the results for these files.
The PLAXIS Output program needs a special data file to show the results. This data file, called data.opi contains relevant and crucial information. When this is missing, the error referring to OPI will be shown. This happens when trying to see results from e.g. PLAXIS 3DFoundation, PLAXIS-GiD and PlaxFlow.
This error will be shown for projects and data that is not properly recognized.
In order to view results made with an older version that is no longer supported by this version’s Output program, please use that older version. You can obtain such an older Output version in several ways: