Can't open include file "Ice/Metrics.ice"

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Hello.
Please, see the attached build logs and let's find the root of this error:
Looking for the Metrics.ice:
...results are:
Checking if ICE_HOME is set:
Please, see the attached build logs and let's find the root of this error:
$ ./gradlew build
:IceGridGUI:compileSlice :glacier2:compileSlice /home/dmitry/Downloads/zeroc/ice/slice/Glacier2/Metrics.ice:15: error: Can't open include file "Ice/Metrics.ice" #include <Ice/Metrics.ice> 1 error in preprocessor. :glacier2:compileSlice FAILED FAILURE: Build failed with an exception. * What went wrong: Execution failed for task ':glacier2:compileSlice'. > /opt/Ice-3.6.0/bin/slice2java command failed: 1 * Try: Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. BUILD FAILED Total time: 1.163 secs
Looking for the Metrics.ice:
sudo find / -type f -iname Metrics.ice
...results are:
/home/dmitry/Downloads/zeroc/ice/slice/Ice/Metrics.ice /home/dmitry/Downloads/zeroc/ice/slice/IceStorm/Metrics.ice /home/dmitry/Downloads/zeroc/ice/slice/Glacier2/Metrics.ice /opt/Ice-3.6.0/slice/Ice/Metrics.ice /opt/Ice-3.6.0/slice/IceStorm/Metrics.ice /opt/Ice-3.6.0/slice/Glacier2/Metrics.ice
Checking if ICE_HOME is set:
$ echo $ICE_HOME /opt/Ice-3.6.0
0
Comments
Could you try editing java/gradle/ice.gradle and move the following @line 129
into the else statement a few lines above it
Your build should work then. I will fix this in our repo for the 3.6.1 release.
Now, let's move to the install instruction:
...leads to this error:
Let's find the icegridgui.jar: