I installed Netbeans 11 but when I committed a code there is an error. But TortoiseSVN works fine with netbeans 8.2.

You need re-run the TortoiseSVN installer (or during the TortoiseSVN installation) and select the option "command line client tools". I have made a screenshot of the option that appears during installation:

Enabling this option netbeans 11.1 starts detecting SVN.
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