My TwinCat PLC project has been going well. Then one day it wouldn't run at all. It turned out almost all files in the project have symbols of a yellow triangle with an exclamation mark on it. What should I do?
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I eventually solved the problem by launching the Windows register editor as an admin, then go to HKEY_LOCAL_MACHINE -> SYSTEM -> CurrentControlSet -> Control -> Lsa -> fipsalgorithmpolicy. Find the Enabled field and modify its value to 0. Relaunch Visual Studio.
This solved the problem. But the register gets re-enabled automatically all the time. So it seems before launching Visual Studio, I have to disable this register again every time.
于 2021-03-25T18:31:53.837 回答