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Hello, Juanjuan Zhao.
Follow the steps given in the Upgrading to ThingWorx 7.4 Guide (link below).
http://support.ptc.com/WCMS/files/172639/en/Upgrading_to_ThingWorx_7.4_1.pdf
Let us know if you need further advice.
-- Craig A.
Hello, Juanjuan Zhao.
Follow the steps given in the Upgrading to ThingWorx 7.4 Guide (link below).
http://support.ptc.com/WCMS/files/172639/en/Upgrading_to_ThingWorx_7.4_1.pdf
Let us know if you need further advice.
-- Craig A.
The problem is solved, thank you