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Bug 350701

Summary: Configured Maven builder now listed as missing after upgrading to m2e 1.0.0
Product: z_Archived Reporter: Keith Wedinger <jkwuc89>
Component: m2eAssignee: Project Inbox <m2e.core-inbox>
Status: CLOSED DUPLICATE QA Contact:
Severity: major    
Priority: P3 CC: igor, jkwuc89
Version: unspecified   
Target Milestone: ---   
Hardware: PC   
OS: Linux   
Whiteboard:

Description Keith Wedinger CLA 2011-06-29 08:54:08 EDT 
Build Identifier: 1.0.0.201106052308

My Eclipse Maven based project was created using m2eclipse 0.12.1.20110112-1712.  When I open this project in Eclipse Helios (3.6.2) with m2e 1.0.0 installed, the Maven builder listed under Project Properties -> Builders is now listed as:

Missing builder (org.maven.ide.eclipse.maven2Builder).

m2e 1.0.0 should automatically convert the old Maven builder created by the older m2eclipse plugin version so that it is compatible with m2e 1.0.0.

The workaround for this issue is below.

1.  Right click on the project in the Eclipse workspace and select Configure -> Convert to Maven Project
2.  Open the project properties and delete the Missing builder entry.

Reproducible: Always

Steps to Reproduce:
1.  Create a Maven project using Eclipse 3.6.2 and m2eclipse 0.12.1.
2.  Open this project using Eclipse 3.6.2 and m2e 1.0.0.
3.  Open project properties for the project and check the Builder properties.
Comment 1 Igor Fedorenko CLA 2011-06-29 15:33:54 EDT 
There is no workspace migration from m2eclipse 0.12 to m2e 1.0. Please create new workspace and re-import the projects.
Comment 2 Igor Fedorenko CLA 2011-08-03 08:37:49 EDT 

*** This bug has been marked as a duplicate of bug 352174 ***
Comment 3 Denis Roy CLA 2021-04-19 13:23:39 EDT 
Moved to https://github.com/eclipse-m2e/m2e-core/issues/