FAQs and Support Center

'Invalid or missing license file' errors in Maple

The most common class of Maple errors is the "Invalid or missing license file" error, which comes in many flavours. This error indicates, obviously, that there is a problem either with the Maple license file, license.dat, or with the Maple license server, which distributes licenses. With more specific information, possibly including the error code, the exact cause and solution can be determined.

Common error messages:

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