[Fixed] Unable to parse YAML file in Unity 3d project

[Fixed] Unable to parse YAML file in Unity 3d project

Sometimes you may get following errors:Unable to parse YAML file: [mapping values are not allowed in this context] at line 1

 or

Unable to parse YAML file: [could not find expected ‘:’] at line 2

Both of those errors usually caused by version control system (eventually by user).
In first case svn added <<<<<<< .mine in to .meta file after conflict.
In second case it was git, added text to highlight conflict.

To fix those errors you just need to go though all .meta files and fix svn or git conflicts.

For git you can use ruby script that you can find on Ashley Whetter’s Blog
For svn just adapt ruby script to look for “<<<<” inside files instead of “:” or write your own script 

Recently I came across the following error when working on a group Unity3D project:

Unable to parse YAML file: [could not find expected ':'] at line 2

We had no yaml files (that we knew of) and Unity could still build and run the project so this error seemed a bit odd.

It turns out that the error was caused by git adding text to highlight a conflict in some of Unity's .meta files. So fixing the error was just a case of finding the meta files and resolving the conflicts.

I used this ruby script to find the files that needed to be fixed. Just place the script in the root of the Unity project and run it. It'll print the locations of the broken files.

ruby源码

require 'find'metafiles = []
Find.wd()) do |path|metafiles << path if path =~ /.*.meta$/
endmetafiles.each do |fileloc|file = File.open(fileloc)line = nil2.times{line = s}puts fileloc if not line =~ /.*:.*/file.close
end