Troubleshooting GRTensorII Error in Maple 12: Unable to Load Metric

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SUMMARY

The forum discussion centers on troubleshooting an error encountered while using GRTensorII version 1.79 with Maple 12. Users reported receiving an error message indicating that the metric file located at `C:/Programme(x86)/Maple12/metrics/kerr.mpl` could not be read. Key solutions include ensuring the correct path identification in the mapleinit file, paying attention to the use of quotes, and correctly utilizing backslashes instead of forward slashes in file paths.

PREREQUISITES
  • Familiarity with GRTensorII version 1.79
  • Basic understanding of Maple 12
  • Knowledge of file path syntax in Windows
  • Experience with configuring Maple initialization files
NEXT STEPS
  • Review GRTensorII installation documentation for Maple 12
  • Learn about configuring the mapleinit file for GRTensorII
  • Investigate file path conventions in Windows, focusing on backslashes and quotes
  • Explore common error messages in GRTensorII and their resolutions
USEFUL FOR

Researchers, physicists, and students using GRTensorII for general relativity calculations, as well as anyone troubleshooting installation issues with Maple 12.

Polyrhythmic
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Hey!

I'm running GRTensorII version 1.79 on Maple 12. When I try to load a metric, I get the following message
Error, (in grload) unable to read `C:/Programme(x86)/Maple12/metrics/kerr.mpl`

I've installed everything according to the guide, but it just won't work.

Maybe anybody has an idea what the reason might be?

Thanks in advance!
 
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It's several years since I've used GRTensor but I do recall that the mapleinit file is quite sensitive to the proper identification of the path to your GRTensor directories. In particular, I seem to remember that it was picky over the correct use of quotes to delimit the path, as well as some issues relating to the use of backslashes over forward slashes in the path.

It's fiddly, but keep playing around with it and you'll get there.
 
Hi.
I really need to install GRTensorII on maple. but I can't. could you please explain how to install it.
 

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