koobas.hobune.stream
This question was
closed Jan 13, 2021 at 05:27 AM by
shangjanzhe for the following reason:
问题已经得到解答，已经采纳了正确的解答
About System.Threading.Mutex
When I open my project use 5.3.5 version, the inside of the original code, tell me the error CS0117: ` System. Threading. Mutex 'does not contain a definition for ` OpenExisting'
![alt text][1]Mutex mutex = null;
try {
mutex = Mutex.OpenExisting( name );
} catch( System.Exception ) {
mutex = null;
}
[1]: /storage/temp/90745-111.jpg
Best Answer
change api compatibility level to .NET2.0
