Rdhakrishnan, did you do an export to ThingworxStorage? You should have the export under ThingworxStorage/ exports once it is completed successfully. As long as you have your Extensions imported (in the new server) before importing your this, it should import correctly.
With that being said, please do post the Application log from the server where it is erroring out.
Hi Aanjan Ravi,
I am not exporting to ThingworxStorage and as i have mentioned earlier, i am exporting data to file(folder) in thingworx FileRepository options under SystemRepository. Also i noticed that in case of export to thingworx storage, there are no options to choose any particular data tables.
Please find below the error received importing the data(Data includes a single table data only) from TW 6.6.0 Neo4j SystemRepository folder(which got saved in local system) to TW 7.1.0 (file copied from local system to target system SystemRepository before choosing the import options).
Task-1477377626222 Failed to import file [/ThingworxStorage/repository/SystemRepository/ValidationErrorTableTest/20161024065242/DataTables/ValidationErrorTable/data-0.twx] : Key field [ErrorCode] had no value
Task-1477377626222 Import issue with DataTable ValidationErrorTable: Key field [ErrorCode] had no value
Task-1477377626222 Import FAILED for entity [ValidationErrorTable] File:[data-0.twx]. Data imported : [0 rows]. Path to file [/ThingworxStorage/repository/SystemRepository/ValidationErrorTableTest/20161024065242/DataTables/ValidationErrorTable/data-0.twx] Failure Reason : Error: . Key field [ErrorCode] had no value.