Failure in unit cache map load - GWT

Question

I get this error during compile-time of my GWT project, there is no such folder as 'gwt-UnitCache' to delete, as suggested in the following questions

I'm using IntelliJ IDEA (IDE), SmartGWT EE (Framework), JBoss AS (Server) and JPA

Here's the error log:

enter image description here

Share the stack trace. It might be a issu with idea gwt plugin and not exactly related to GWT. — appbootup, Apr 24 '13 at 14:30

score 4 · Answer 1 · answered Oct 06 '13 at 08:07

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If you change the value of your <module rename-to='<appname>'> in .gwt.xml it will give the same error :) but then you can just delete your gwt-unitCache and all is ok :)

answered Oct 06 '13 at 08:07

Mihkel L.

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score 2 · Answer 2 · answered Nov 13 '13 at 17:04

IntelliJ IDEA stores GWT cache files in other location than <ProjectFolder>/gwt-unitCache, which is a default directory for a cache if you are using, for example, Eclipse with GPE (Google Plugin for Eclipse).

In IDEA, GWT cache should be located by default at <your_home>/.IntelliJIdea12/system/gwt (IntelliJ IDEA 12, Linux). For other operating systems you can check Project and IDE Settings.

If you delete mentioned gwt folder contents, IntelliJ will create a new cache, which in turn might solve your Failure in unit cache... (and similar Unable to read from byte cache) problem.

score 2 · Answer 3 · answered Dec 10 '13 at 10:34

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I had the same problem with Eclipse.

Unfortunately looks like the only solution is the one given by Crowlix. I tried to delete gwtCache and Temp files, but nothing worked.

The problem only got fixed when deleting the entire project and re-importing it.

answered Dec 10 '13 at 10:34

algiogia

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I got it fixed clearing the GWT cache in temp files , guess people can try giving it a shot – avinash v p Nov 03 '16 at 18:29

score 1 · Accepted Answer · answered Apr 25 '13 at 07:19

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I was able to fix it by systematically removing, compiling and re-adding every artifact piece. If you're having this problem, make sure you have a structure like this:

enter image description here

lib contains your compile-time libraries

answered Apr 25 '13 at 07:19

Crowlix

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score 1 · Answer 5 · edited May 23 '17 at 12:18

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I am face off this same error, this tip doesn't works for me, moreover, I keep about looking for a solution, and finally, I got this advice:

Java stack overflow error

I tried with -Xss1m, but the error persists, I keep on trying, my final value was -Xss5m

I am using GWT 2.5.1 and IntelliJ 12.

edited May 23 '17 at 12:18

Community

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answered Apr 25 '13 at 15:06

Vielinko

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Thanks for your input, I'm sure both answers will be very useful for quite some people =) – Crowlix Apr 26 '13 at 06:43
fixed it for me, on a project with 150K LOC + Sencha GXT – Tony BenBrahim Dec 11 '14 at 17:37

score 0 · Answer 6 · edited May 23 '17 at 12:34

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I've got same problem building a project with maven.

Usign both suggestion of Nishant and @iVieL:

$ export MAVEN_OPTS="-Xms512m -Xmx1024m -Xss32m"
$ mvn clean package

edited May 23 '17 at 12:34

Community

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answered Oct 09 '13 at 08:03

Ivan Buttinoni

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score 0 · Answer 7 · answered Oct 13 '20 at 14:12

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you must clean your project first (Project -> Clean) then remove /gwt-unitCache then rebuild it.

answered Oct 13 '20 at 14:12

mahdi sharbaty

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Failure in unit cache map load - GWT

7 Answers7