Maple Troubleshooting GRTensorII Error in Maple 12: Unable to Load Metric

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The discussion centers around issues with loading a metric in GRTensorII version 1.79 on Maple 12, specifically encountering an error message indicating an inability to read a specified file path. Users suggest that the problem may stem from the sensitivity of the mapleinit file regarding the correct path identification, emphasizing the importance of using the correct quotation marks and slashes in the file path. Additionally, there is a request for guidance on installing GRTensorII on Maple, indicating that some users are struggling with the installation process. Overall, the conversation highlights common troubleshooting steps and installation challenges associated with GRTensorII on Maple.
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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