We have migrated our one environment from Appian 7.2 to 7.6 to 7.7 by using same

navanathw670 over 10 years ago

We have migrated our one environment from Appian 7.2 to 7.6 to 7.7 by using same old database used for Appian earlier from version 7.2. We had also faced the issue related to data type during the migration from 7.2 to 7.6 in which support provided script to run command
-> clear-external-type-id.bat false.

Currently we are unable to download the XSDs and not able to publish the CDTs which is not allowing to verify the datastore mappings.
error seen like
The data type could not be saved: null (APNX-2-4047-008).

Any solutions ...

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0 Eduardo Fuentes
Appian Employee
over 10 years ago

This can be prevented by avoiding any manual updates to the DT_MODEL table, make sure the DT_MODEL is never wiped out, that this environment never points to a different primary DS, that you don't revert to previous *.kdb without reverting the primary DS too, basically avoid anything that can put this in an unsync'ed state
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0 Eduardo Fuentes
Appian Employee
over 10 years ago

This can be prevented by avoiding any manual updates to the DT_MODEL table, make sure the DT_MODEL is never wiped out, that this environment never points to a different primary DS, that you don't revert to previous *.kdb without reverting the primary DS too, basically avoid anything that can put this in an unsync'ed state
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