Fixed in 0.0.9

I am still seeing this issue with 0.0.9

Dec 17, 2015 1:52:57 PM FINE hudson.plugins.scm_sync_configuration.SCMManipulator
Checking in SCM files ...
Dec 17, 2015 1:52:57 PM FINER org.apache.maven.scm.manager.ScmManager checkIn
THROW
org.apache.maven.scm.ScmException: Exception while executing SCM command.
	at org.apache.maven.scm.command.AbstractCommand.execute(AbstractCommand.java:63)
	at org.apache.maven.scm.provider.git.AbstractGitScmProvider.executeCommand(AbstractGitScmProvider.java:291)
	at org.apache.maven.scm.provider.git.AbstractGitScmProvider.checkin(AbstractGitScmProvider.java:217)
	at org.apache.maven.scm.provider.AbstractScmProvider.checkIn(AbstractScmProvider.java:415)
	at org.apache.maven.scm.provider.AbstractScmProvider.checkIn(AbstractScmProvider.java:397)
	at org.apache.maven.scm.manager.AbstractScmManager.checkIn(AbstractScmManager.java:423)
	at hudson.plugins.scm_sync_configuration.SCMManipulator.checkinFiles(SCMManipulator.java:241)
	at hudson.plugins.scm_sync_configuration.ScmSyncConfigurationBusiness.processCommitsQueue(ScmSyncConfigurationBusiness.java:223)
	at hudson.plugins.scm_sync_configuration.ScmSyncConfigurationBusiness.access$000(ScmSyncConfigurationBusiness.java:32)
	at hudson.plugins.scm_sync_configuration.ScmSyncConfigurationBusiness$1.call(ScmSyncConfigurationBusiness.java:148)
	at hudson.plugins.scm_sync_configuration.ScmSyncConfigurationBusiness$1.call(ScmSyncConfigurationBusiness.java:145)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.maven.scm.ScmException: Error while executing command.
	at org.apache.maven.scm.provider.git.gitexe.command.GitCommandLineUtils.execute(GitCommandLineUtils.java:122)
	at org.apache.maven.scm.provider.git.gitexe.command.checkin.GitCheckInCommand.executeCheckInCommand(GitCheckInCommand.java:129)
	at org.apache.maven.scm.command.checkin.AbstractCheckInCommand.executeCommand(AbstractCheckInCommand.java:54)
	at org.apache.maven.scm.command.AbstractCommand.execute(AbstractCommand.java:59)
	... 14 more
Caused by: org.codehaus.plexus.util.cli.CommandLineException: Error inside systemOut parser
	at org.codehaus.plexus.util.cli.CommandLineUtils$1.call(CommandLineUtils.java:188)
	at org.codehaus.plexus.util.cli.CommandLineUtils.executeCommandLine(CommandLineUtils.java:107)
	at org.codehaus.plexus.util.cli.CommandLineUtils.executeCommandLine(CommandLineUtils.java:74)
	at org.apache.maven.scm.provider.git.gitexe.command.GitCommandLineUtils.execute(GitCommandLineUtils.java:118)
	... 17 more
Caused by: java.lang.IllegalArgumentException: Illegal character in path at index 0: "jobs/SQS%20Metrics/config.xml"
	at java.net.URI.create(URI.java:852)
	at org.apache.maven.scm.provider.git.gitexe.command.status.GitStatusConsumer.resolveURI(GitStatusConsumer.java:251)
	at org.apache.maven.scm.provider.git.gitexe.command.status.GitStatusConsumer.resolvePath(GitStatusConsumer.java:232)
	at org.apache.maven.scm.provider.git.gitexe.command.status.GitStatusConsumer.consumeLine(GitStatusConsumer.java:138)
	at org.codehaus.plexus.util.cli.StreamPumper.consumeLine(StreamPumper.java:190)
	at org.codehaus.plexus.util.cli.StreamPumper.run(StreamPumper.java:135)
Caused by: java.net.URISyntaxException: Illegal character in path at index 0: "jobs/SQS%20Metrics/config.xml"
	at java.net.URI$Parser.fail(URI.java:2848)
	at java.net.URI$Parser.checkChars(URI.java:3021)
	at java.net.URI$Parser.parseHierarchical(URI.java:3105)
	at java.net.URI$Parser.parse(URI.java:3063)
	at java.net.URI.<init>(URI.java:588)
	at java.net.URI.create(URI.java:850)
	... 5 more

I am also seeing this on 0.0.9 on Windows:

Feb 12, 2016 9:38:16 AM FINE hudson.plugins.scm_sync_configuration.SCMManipulator
Checking in SCM files ...
Feb 12, 2016 9:38:16 AM FINER org.apache.maven.scm.manager.ScmManager checkIn
THROW
org.apache.maven.scm.ScmException: Exception while executing SCM command.
at org.apache.maven.scm.command.AbstractCommand.execute(AbstractCommand.java:63)
at org.apache.maven.scm.provider.git.AbstractGitScmProvider.executeCommand(AbstractGitScmProvider.java:291)
at org.apache.maven.scm.provider.git.AbstractGitScmProvider.checkin(AbstractGitScmProvider.java:217)
at org.apache.maven.scm.provider.AbstractScmProvider.checkIn(AbstractScmProvider.java:415)
at org.apache.maven.scm.provider.AbstractScmProvider.checkIn(AbstractScmProvider.java:397)
at org.apache.maven.scm.manager.AbstractScmManager.checkIn(AbstractScmManager.java:423)
at hudson.plugins.scm_sync_configuration.SCMManipulator.checkinFiles(SCMManipulator.java:241)
at hudson.plugins.scm_sync_configuration.ScmSyncConfigurationBusiness.processCommitsQueue(ScmSyncConfigurationBusiness.java:223)
at hudson.plugins.scm_sync_configuration.ScmSyncConfigurationBusiness.access$000(ScmSyncConfigurationBusiness.java:32)
at hudson.plugins.scm_sync_configuration.ScmSyncConfigurationBusiness$1.call(ScmSyncConfigurationBusiness.java:148)
at hudson.plugins.scm_sync_configuration.ScmSyncConfigurationBusiness$1.call(ScmSyncConfigurationBusiness.java:145)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: org.apache.maven.scm.ScmException: Error while executing command.
at org.apache.maven.scm.provider.git.gitexe.command.GitCommandLineUtils.execute(GitCommandLineUtils.java:122)
at org.apache.maven.scm.provider.git.gitexe.command.checkin.GitCheckInCommand.executeCheckInCommand(GitCheckInCommand.java:129)
at org.apache.maven.scm.command.checkin.AbstractCheckInCommand.executeCommand(AbstractCheckInCommand.java:54)
at org.apache.maven.scm.command.AbstractCommand.execute(AbstractCommand.java:59)
... 15 more
Caused by: org.codehaus.plexus.util.cli.CommandLineException: Error inside systemOut parser
at org.codehaus.plexus.util.cli.CommandLineUtils$1.call(CommandLineUtils.java:188)
at org.codehaus.plexus.util.cli.CommandLineUtils.executeCommandLine(CommandLineUtils.java:107)
at org.codehaus.plexus.util.cli.CommandLineUtils.executeCommandLine(CommandLineUtils.java:74)
at org.apache.maven.scm.provider.git.gitexe.command.GitCommandLineUtils.execute(GitCommandLineUtils.java:118)
... 18 more
Caused by: java.lang.IllegalArgumentException: Illegal character in path at index 0: "jobs/ProjectName%20x86/config.xml"
at java.net.URI.create(Unknown Source)
at org.apache.maven.scm.provider.git.gitexe.command.status.GitStatusConsumer.resolveURI(GitStatusConsumer.java:251)
at org.apache.maven.scm.provider.git.gitexe.command.status.GitStatusConsumer.resolvePath(GitStatusConsumer.java:232)
at org.apache.maven.scm.provider.git.gitexe.command.status.GitStatusConsumer.consumeLine(GitStatusConsumer.java:138)
at org.codehaus.plexus.util.cli.StreamPumper.consumeLine(StreamPumper.java:190)
at org.codehaus.plexus.util.cli.StreamPumper.run(StreamPumper.java:135)
Caused by: java.net.URISyntaxException: Illegal character in path at index 0: "jobs/ProjectName%20x86/config.xml"
at java.net.URI$Parser.fail(Unknown Source)
at java.net.URI$Parser.checkChars(Unknown Source)
at java.net.URI$Parser.parseHierarchical(Unknown Source)
at java.net.URI$Parser.parse(Unknown Source)
at java.net.URI.<init>(Unknown Source)
... 6 more

This is still happening in my instance with linux:

jenkins@<pc name>:~$ cat /etc/*-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=15.04
DISTRIB_CODENAME=vivid
DISTRIB_DESCRIPTION="Ubuntu 15.04"
NAME="Ubuntu"
VERSION="15.04 (Vivid Vervet)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 15.04"
VERSION_ID="15.04"
HOME_URL="http://www.ubuntu.com/"
SUPPORT_URL="http://help.ubuntu.com/"
BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/"

Error from jenkins log

SCM Sync Configuration plugin = 0.0.9. I will try to rename projects with %20 with - and figure out if this will work. estcr14 works with me in the same project.
This is the name of a view not a job.

To workaround this issue I had to:
cd $JENKINS_HOME/scm-sync-configuration/checkoutConfiguration/
git add -A
git commit -m 'Manual sync due to white spaces'
git push origin master
cd $JENKINS_HOME
rm scm-sync-configuration.fail.log

a restart of jenkins is required as well.
hope this helps

That fix worked for me, but as soon as a new project with a space in the title was created the errors came back, and this time even manually running a git update wouldn't fix it. I eventually had to nuke the old git repository and then change all the project titles so that they didn't have any whitespace.

I forgot to mention that there's some weird behaviour. If I do a change once I push and restart. Sometimes it doesn't register the change. I had to do a couple of changes and then it loads. Nuking the plug in completely also is a work around for me

We're seeing that problem too.

Plugin version 0.0.9, Jenkins version 1.643.

Any hope for a fix?

Fixed in https://github.com/jenkinsci/scm-sync-configuration-plugin/commit/a739a54d0c6d65c500245a46b0861cd6f1ba1cbf

Thank you so much!