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Editorial Team
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Asked: 2026-06-04T08:36:31+00:00

I have no idea how to troubleshoot errors that arise while a project is

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I have no idea how to troubleshoot errors that arise while a project is building. Any suggestions for dealing with this? Language is Java.

make[1]: *** No rule to make target `org/zeromq/ZMQ$Context.class', needed by `all'.  Stop.

Per below suggestion got this output from make -d:

Considering target file `org/zeromq/ZMQ$Context.class'.
File `org/zeromq/ZMQ$Context.class' does not exist.
Looking for an implicit rule for `org/zeromq/ZMQ$Context.class'.
Trying pattern rule with stem `ZMQ$Context.class'.
Trying implicit prerequisite `org/zeromq/ZMQ$Context.class.cpp'.
Trying pattern rule with stem `ZMQ$Context.class'.
Trying implicit prerequisite `org/zeromq/ZMQ$Context.class.o'.
Trying pattern rule with stem `ZMQ$Context.class'.
Trying implicit prerequisite `org/zeromq/ZMQ$Context.class,v'.
...
Must remake target `org/zeromq/ZMQ$Context.class'.
make[1]: *** No rule to make target `org/zeromq/ZMQ$Context.class', needed by `all'.  Stop.

So, looks like make isn’t smart enough to look in ZMQ.java for ZMQ$Context.class ‘s definition. Is this a problem with my version of make or a problem in the makefile the library owner supplied me?

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1 Answer

  1. Editorial Team

    For sure a short question. The answer may be man make.

    You will discover -d option for generic debug Make verbosity or even --debug=FLAG to reduce output to less verbose debug levels.

    In your specific case, Make try to find the source file required to generate org/zeromq/ZMQ$Context.class and the Makefile rule may not be clever enough to guess it must be compiled from org/zeromq/ZMQ.java.

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