[JAVA] Error summary when creating Minecraft MOD development environment

If the Java version is different

On the console Unrecognized option: -Xincgc In the dialog

Could not create the Java Virtual Machine.


Error: A fatal exception has occurred Program will exit.```
 Is displayed.
 It is likely that the Java version is incorrect.
```Window> Settings> java> Installed jre>"Java version that was in minecraft"```
 Please choose. In my case it was Java 8.
```Package Explorer> Any Project> jre System Library"java version"```It was pretty good even if I didn't change it, but it may be better to change it.
 When changing
```Right click> Properties> Execution environment```Change from.
# If the default classpath has not been set
 On the console
#### Error: Main class GradleStart was not found or could not be loaded
Java HotSpot(TM) 64-Bit Server VM warning: Using incremental CMS is deprecated and will likely be removed in a future release
 Is displayed
 The startup configuration is incorrect.
```Next to the run mark, "Launch Configuration"> Classpath> Restore Default Entry```
 Please press.
 However, please do so after matching the Java version properly.
 Perhaps the version will change the behavior here.
 Then add the Java project you want to build to your user entry.
 Add exported items for the selected project.
 Add required projects for the selected project. I think you can uncheck.


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