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I have installed RStudioand after a few minute i get this message on my terminal board:

"0 [main] ls (23240) C:\rtools40\usr\bin\ls.exe: *** fatal error - cygheap base mismatch detected - 0x180331408/0x180316408.
This problem is probably due to using incompatible versions of the cygwin DLL.
Search for cygwin1.dll using the Windows Start->Find/Search facility and delete all but the most recent version.
The most recent version should reside in x:\cygwin\bin, where 'x' is the drive on which you have installed the cygwin distribution.
Rebooting is also suggested if you are unable to find another cygwin DLL."

And the problem is that I don't found the file cygwin1.dll in my computer and I don't have more version of cygwin. Thank you in advance for the response.

keikai
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cedrik24
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  • similar issue to https://stackoverflow.com/questions/60507083/why-cant-i-fix-the-cygwin1-dll-mismatch-issue/60525817#60525817 `While the error message is mentioning cygwin1.dll, it is misleading as it is using MSYS and the file was renamed msys-2.0.dll` – matzeri May 11 '20 at 12:32

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