While playing around with Spring roo I see this error while running the integration tests via
perform tests
roo org.springframework.orm.jpa.JpaOptimisticLockingFailureException: org.hibernate.StaleObjectStateException: Row was updated or deleted by another transaction
The problem was here, that my database table which stored the specific entities had a version column but only NULL values inside. I have replaced the NULLs with an numeric value and then it worked.
I’m just playing around with Spring Roo and multi-module Maven projects. When I start to import a project into the STS I am getting the following error and the SDK is getting unresponsive:
“Updating Maven Project”. Unsupported IClasspathEntry kind=4
The problem is somehow related to the m2e plugin integrated in the STS.
So solve this select (right click) on the STS/Eclipse modules
Maven -> Disable Maven Nature
Maven Disable Maven Nature in STS (Eclipse)
run in the terminal
mvn eclipse:clean
and select again in STS
Configure -> Convert to Maven Project
I have just tried to deploy my Rails 3 application which uses ActiveAdmin and I’ve gotten the following error:
File to import not found or unreadable: active_admin/mixins
I’ve just got this error in my Rails 3.0.7 application:
Psych::SyntaxError (couldn’t parse YAML at line 289 column 14)
To fix this I needed to add
require 'yaml' YAML::ENGINE.yamler= 'syck'
into my first two lines of the config/boot.rb
I had some problems running Apache Archiva – the Maven repository management tool – on my Debian Linux 64bit system. The error I got when starting the standalone version via
I’ve just got the following error message while accessing the Inbound E-mail feature in SugarCRM:
Inbound Email cannot function without the IMAP c-client libraries enabled/compiled with the PHP module
To fix this error on my Debian server I’ve had to install the PHP IMAP module via
apt-get install php5-imap
I just wanted to compile & assemble a Maven project using mvn assembly:assembly and got the following error:
Compilation failure [...](use -source 5 or higher to enable annotations)
To fix this error I needed to add
<plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>2.3.2</version> <configuration> <source>1.6</source> <target>1.6</target> </configuration> </plugin>
to my pom.xml file.
I got the following error when trying to start the ‘rails console’ in a Rails3/Ruby 1.9.2 project:
`require’: no such file to load — readline (LoadError)
The problem was that readline was not installed properly. To install it, I needed to go into the ruby sources. In my case they were located in the directory /use/local/src/ruby-1.9.2-p0/ext/readline. I changed to it an built and installed realdline via
ruby extconf.rb make sudo make install
I just tried to create a Rails model which contained nested other models and got an HashWithIndifferentAccess error. I used accepts_nested_attributes_for in the parent model. To solve this problem the solution was to add an attr_accessible :MODELNAME_attributes for the child-model (MODELNAME) into the parent model. E.g.
Parent model
class ParentModel < ActiveRecord::Base has_one :child_model attr_accessible :child_model_attributes end
