A plugin is just a user interface and uses a basic installation of Mercurial .
This error occurs primarily when installing Mercurial Plugin for Eclipse without actually installing Mercurial earlier on your system.
To solve this problem, first:
- Install Mercurial on your system using one of those installers that suits you best. here .
- Go to Window-> Settings-> Command-> Mercury and in the mercury executable field, go to:
hg.exe
which was installed using the mercury installation above.
Mercurial Plugin for Eclipse will now work fine.
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