I write a plugin for es 2.1.1, but when i install the plugin, some error tell me not success instatl.
the error is
Trying file:/opt/meituan/example-plugin-1.0-SNAPSHOT.zip ...
Downloading .DONE
Verifying file:/opt/meituan/example-plugin-1.0-SNAPSHOT.zip checksums if available ...
NOTE: Unable to verify checksum for downloaded plugin (unable to find .sha1 or .md5 file to verify)
ERROR: Could not find plugin descriptor 'plugin-descriptor.properties' in plugin zip
my plugin project structure is
and my install code is
./plugin install file:///opt/meituan/example-plugin-1.0-SNAPSHOT.zip
my plugin's java code is very simple
how can i fix the problem? thank you