CLR20R3 one of the error resolution cases

Problem Signature:
Problem Event NAME:CLR20R3
Problem Signature 01:zq.main.wpf.exe
Problem Signature 02:1.0.0.5
Problem Signature 03:54bf751e
Problem Signature 04:system.xml
Problem Signature 05:4.0.0.0
Problem Signature 06:4BA1DFEC
Problem Signature 07:73b
Problem Signature 08:0
Problem Signature 09:ioibmurhynrxkw0zxkyrvfn0boyyufow
OS version:6.1.7601.2.1.0.256.48
Locale id:1028
Additional Information 1:2a39
Additional Information 2:2a3956b61d7d9a8912ffd92ea889fc5c
Additional Information 3:002c
Additional Information 4:002cd34bb5d065ae0b5c7167047a987c

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There may be more than one cause of the error.

The process of solving my case is:

The WPF program developed by C #, in the project context menu-Properties-settings, sets some parameters that will be saved to the client computer directory.

After deleting the file under directory C:\users\[username]\appdata\local\[app], the problem is resolved.

CLR20R3 one of the error resolution cases