This site contains older material on Eiffel. For the main Eiffel page, see

Eiffel Knowledge Base

This page is outdated. Please use the new Knowledge Base.

The problems have been divided into two categories:

This page applies to the latest versions of ISE Eiffel.

If you are looking for an answer to a general Eiffel question, rather than observing apparently abnormal behavior, you are not in the right place. See the Frequently Asked Questions page.

See also the examples of library usage.

Windows problems

Missing examples

I installed EiffelBench and the examples are missing!

I need a permanent code

I purchased and installed ISE Eiffel for Windows, yet when EiffelBench starts it tells me that my license will expire in a few days!

Precompiled library missing (VD42)

When I try to compile my project, EiffelBench reports warning VD42: precompiled directory/file is unreadable.

Precompiled library incomplete (VD43)

When I try to compile my project, EiffelBench reports warning VD43: precompiled file missing or unreadable.

My compiled system will not run

I just melted my system but when I try to run it a dialog box appears which reads: "Makefile.SH is more recent than the system. Do you want to compile the generated C code?"

Can I use WEL (the Windows Eiffel Library) and resource files without a C compiler?

I want to use WEL, or Windows resource files, but I don't have a C compiler.

I cannot compile the generated C code

When freezing a system, C compilation produces errors.

I cannot compile the generated C code in multithreaded mode.

When freezing a system using multithreading, C compilation produces errors.

Borland problems

I have the Borland C compiler and I am not able to compile my project.

Unix problems

Installing from CD-ROM

I cannot install from the CD-ROM; there seems to be a problem with file names.

I don't know how to install Eiffel 4

Some common installation problems.

Daemon does not answer

I am trying to launch the Eiffel compiler, but I get an error message saying: `Daemon does not answer'.

Strange backspace key behavior (Linux/X11R6)

Backspace key steps one character to the right after deleting the character to the left of the cursor.

KeySym translation errors

When I start EiffelBench, I get a list of KeySym translation errors and the cursor keys and delete keys don't work in the tool.

Under EiffelBench, I can't enter input to my system's execution

I am using EiffelBench and trying to do terminal input with ebench in the background, but when I enter input my system does not get it, or gets only some of it, or stops with an exception!

Error when linking after finish_freezing (SunOS)

I am working on SunOS and I get an error message when I link after I have executed finish_freezing.

Other entries?

If you have any interesting usage problems that you think would be a useful addition to this page, then please use the on-line report form.