FAQ 002630 EN-US 03/12/2019


I get an error while trying to calculate a file Warning no. 1145th What is the cause for this?


The reason for this message is that you are in viewer mode. When installing RFEM or RSTAB, a viewer version is automatically installed in addition to the normal version. This will appear as an additional icon on the desktop. In this mode, files with results can be opened, but no changes can be made.

If you want to edit and calculate a file, you should open the icon without the addition "Viewer".


Viewer 1145

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RFEM Main Program
RFEM 5.xx

Main Program

Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids and contact elements

Price of First License
3,540.00 USD
RSTAB Main Program
RSTAB 8.xx

Main Program

The structural engineering software for design of frame, beam and truss structures, performing linear and nonlinear calculations of internal forces, deformations, and support reactions

Price of First License
2,550.00 USD