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Hi together,   I am currently going through Mendix Learning Paths and have encountered a problem. The Path I’m doing right now is the “Constrain your Data using Advanced XPath” (https://gettingstarted.mendixcloud.com/link/path/109/Constrain-your-Data-using-Advanced-XPath) and I am using the module package that they made available in chapter 2.2, however after step 2.2.2 I am asked to run the project and take a look at it and it doesn’t run and I get the warning message “Compilation of Java actions failed” and I don’t know why.   This is the full error message: --------------------------------------------------------------------------- Buildfile: C:\Users\lpu\Documents\Mendix\XPath_II_startingpoint-main\deployment\build_core.xml compile:     [javac] Compiling 340 source files to C:\Users\lpu\Documents\Mendix\XPath_II_startingpoint-main\deployment\run\bin     [javac] C:\Users\lpu\Documents\Mendix\XPath_II_startingpoint-main\javasource\communitycommons\Misc.java:360: error: method execute in class Core cannot be applied to given types;     [javac]         return Core.execute(c, microflowName, params);     [javac]                    ^     [javac]   required: T     [javac]   found: IContext,String,Map<String,Object>     [javac]   reason: cannot infer type-variable(s) T,R     [javac]     (actual and formal argument lists differ in length)     [javac]   where T,R are type-variables:     [javac]     T extends CoreAction<R> declared in method <T,R>execute(T)     [javac]     R extends Object declared in method <T,R>execute(T)     [javac] C:\Users\lpu\Documents\Mendix\XPath_II_startingpoint-main\javasource\communitycommons\Misc.java:590: warning: [dep-ann] deprecated item is not annotated with @Deprecated     [javac]     public static boolean objectsAreEqual(Object left, Object right) {     [javac]                           ^     [javac] C:\Users\lpu\Documents\Mendix\XPath_II_startingpoint-main\javasource\databasereplication\actions\ImportActivitySet.java:45: error: method execute in class Core cannot be applied to given types;     [javac]             Core.execute(context, "DatabaseReplication.ProcessActivitySet", paramMap);     [javac]                 ^     [javac]   required: T     [javac]   found: IContext,String,HashMap<String,Object>     [javac]   reason: cannot infer type-variable(s) T,R     [javac]     (actual and formal argument lists differ in length)     [javac]   where T,R are type-variables:     [javac]     T extends CoreAction<R> declared in method <T,R>execute(T)     [javac]     R extends Object declared in method <T,R>execute(T)     [javac] C:\Users\lpu\Documents\Mendix\XPath_II_startingpoint-main\javasource\databasereplication\implementation\IDataManager.java:118: error: method execute in class Core cannot be applied to given types;     [javac]                 Core.execute(this.settings.getContext(), this.settings.getFinishingMicroflowName(), params);     [javac]                     ^     [javac]   required: T     [javac]   found: IContext,String,HashMap<String,Object>     [javac]   reason: cannot infer type-variable(s) T,R     [javac]     (actual and formal argument lists differ in length)     [javac]   where T,R are type-variables:     [javac]     T extends CoreAction<R> declared in method <T,R>execute(T)     [javac]     R extends Object declared in method <T,R>execute(T)     [javac] Note: Some input files use or override a deprecated API.     [javac] Note: Recompile with -Xlint:deprecation for details.     [javac] 3 errors     [javac] 1 warning BUILD FAILED C:\Users\lpu\Documents\Mendix\XPath_II_startingpoint-main\deployment\build_core.xml:29: Compile failed; see the compiler error output for details. Total time: 10 seconds     I don’t know what I am doing wrong, since I followed the guide correctly and could need some help   Thank you!

asked 2021-08-23

4 answers