fixing "no such app as" error in heroku deployment after application rename

I did few changes in my toy project and pushed it to heroku with

git push heroku master

but got this error:

!  No such app as myOldApplicationName.

fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

I googled a bit to see that this is due to my application rename in heroku website. The previous name was "myOldApplicationName". Then I searched my .git directory to see if there are references to the old application name. I found it under "config".

[remote "heroku"]
 url = git@heroku.myOldApplicationName.git

Edit it with your new application to fix the issue.

[remote "heroku"]
 url = git@heroku.com:myNewApplicationName.git

non-parseable settings in maven

I saw a very odd error while building our project with maven.

 
[ERROR] Error executing Maven.
[ERROR] 1 problem was encountered while building the effective settings
[FATAL] Non-parseable settings C:\Program Files
(x86)\Apache\apache-maven-3.0.5\conf\settings.xml: entity reference
names can not start with character '<' (position: START_TAG seen
...myPassword<... @12:33)  @ C:\Program Files
(x86)\Apache\apache-maven-3.0.5\conf\settings.xml, line 12, column 33

Nothing in the project changed so it shouldn't spit me an error. Then I saw the error line and remembered that I changed my corporate password and put it in the settings.xml because our corporate proxy need it for working. So if you see a similar error, keep in mind that this is because and invalid character in the xml file. My password contained an ampersand and thus I had this issue.

packaging with value jar is invalid ?

While trying to build my new project using maven, I got "packaging' with value 'jar' is invalid" error.
I have a parent pom and a separate pom in each modules' folder; but in none of my pom files, I set packaging as "jar".

After googling a little, I saw that the default packaging is "jar" and in the parent pom I didn't specify any packaging type.
So it uses "jar" as packaging type of the parent which is wrong.
After adding "<packaging> pom <packaging>" to my parent pom's attributes, the maven error is gone.

Could not calculate build plan: Missing: maven-resources-plugin:maven-plugin:2.4.1

While I was trying to take Quartz using Maven I got "Could not calculate build plan: Missing: maven-resources-plugin:maven-plugin:2.4.1" error. What now? Everything was working just fine!
To fix this, find where your local repo is, then go to "/.m2/repository/org/apache/maven/plugins/maven-resources-plugin/", remove "2.4.1" directory and do "update dependencies" from Maven.