Using j2objc throws errors "Class cannot be resolved to a type"

Question

I am using j2objc.

I have 2 classes:

LabelPosition.java
Event.java

In Event I have references to LabelPostion

I could translate the standalone Class Labelposition without problems. Packagestructure and the File .h & -m are created.

Now I try to translate the Event.java, which has references to LabelPosition as follow:

./j2objc --verbose -d objective-c -sourcepath . Event.java

I get errors:

error: Event.java:79: LabelPosition cannot be resolved to a type
error: Event.java:79: LabelPosition cannot be resolved to a type
error: Event.java:284: LabelPosition cannot be resolved to a type
error: Event.java:285: LabelPosition cannot be resolved to a type
error: Event.java:287: LabelPosition cannot be resolved to a type
error: Event.java:288: LabelPosition cannot be resolved to a type

Following screens shows my Folderstructur: enter image description here

What am I doing wrong ?

tball · Accepted Answer · 2015-02-10 21:48:14Z

1

Xcode can't handle headers in sub-directories -- everything has to be in the same directory. This is easy to fix: add the --no-package-directories flag and rebuild everything.

answered Feb 10, 2015 at 21:48

tball

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2 Comments

mcfly soft Over a year ago

i just added the --no-package-directories to my existing command, but I got the same error again. You mentoined it has to be all in the same folder. That do you mean with all regarding my folderstructur in the screenshot ? -> "Events.ava" and "LabelPositon.java" are in the same folder as the command j2objc. Anything else to do ?

tball Over a year ago

Sorry, I thought you were building in Xcode. Does "javac -d objective-c -sourcepath . Event.java" succeed? j2objc's front-end is a Java compiler, and it needs the same paths that javac does. My guess is that one or both of these sources have a package statement, and so should be in sub-directories that match that statement. For example, if LabelPosition has "package foo.bar;" then the source needs to be in foo/bar/LabelPosition.java. In any event, the general trick is to first define a javac command that works, then change "javac" to "j2objc".

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