Imported From: https://issues.scala-lang.org/browse/SI-7821?orig=1
Reporter: Anish Patel (anishpatel)
Affected Versions: 2.10.2

Anish Patel (anishpatel) said:
Temporary Resolution: Do not install Scala in a path that includes spaces. By default, the Windows MSI installer will install Scala at "C:\Program Files (x86)\scala", but this can be modified in the installation wizard.

Personally, I installed Scala at "C:\scala".

@retronym said:
I wasn't able to reproduce on Windows 7. https://dl.dropboxusercontent.com/u/106552/screenshots/Screen%20Shot%202013-10-20%20at%204.42.41%20PM.png

Maybe something special in Windows 8? I'll grab a VM and try it out.

@retronym said:
Just tried 2.10.3 MSI installer on Windows 8. It offered to install to "C:\Program Files", but I changed that to "C:\Program Files (x86)" to make things harder.

But things work as expected.

https://www.dropbox.com/s/ci2uiudiy5ntxxk/Screen%20Shot%202013-10-20%20at%204.42.41%20PM.png

Anish: could you try a fresh install with 2.10.3 on your machine? Until I hear back, I have to mark this ticket as "incomplete"

Kevin Meredith (kmeredith) said:
On Windows 7, after installing 2.11.0's MSI, I saw the same error.

To fix it, I installed the 2.11.0's ZIP file, then updated my $PATH.

Elvin Pantowidjoyo (Nelvios) said (edited on May 19, 2015 4:33:35 PM UTC):
I'm trying to install Scala 2.11.6 on my Win 7 x64 and this error STILL came out. By doing some research on how to fix a batch file (.bat), I finally found a permanent workaround.
I hope the Scala team can use it on the next version so that Windows x64 users can install Scala without any modification on the .bat file.

The modification must be done on each .bat file under the "scala\bin" directory, which consists of scala.bat, scalac.bat, scaladoc.bat, and scalap.bat.

On every file, right click then choose "Edit".
At the bottom of every file you will find these two subroutines:
:add_cpath and :set_home

In :add_cpath change

    if "%_TOOL_CLASSPATH%"=="" (
        set _TOOL_CLASSPATH={color:red}%~1{color}
    ) else (
        set _TOOL_CLASSPATH={color:red}%_TOOL_CLASSPATH%;%~1{color}
    )

into

    if "%_TOOL_CLASSPATH%"=="" (
        set _TOOL_CLASSPATH={color:red}"%~1"{color}
    ) else (
        set _TOOL_CLASSPATH={color:red}"%_TOOL_CLASSPATH%;%~1"{color}
    )
    {color:red}set _TOOL_CLASSPATH=%_TOOL_CLASSPATH:~1,-1%{color}

And in :set_home change

    set _BIN_DIR=
    for %%i in ({color:red}%~sf0{color}) do set _BIN_DIR=%_BIN_DIR%%%~dpsi
    set _SCALA_HOME=%_BIN_DIR%..

into

    set _BIN_DIR=
    for %%i in ({color:red}"%~sf0"{color}) do set _BIN_DIR=%_BIN_DIR%%%~dpsi
    set _SCALA_HOME=%_BIN_DIR%..

Save them all, then try to run Scala and...
Voila! There's your fix.

Romeo Disca (thinkrapido) said:
I have this problem with msi 2.12.1:

λ scala
"\scala\bin\scala.bat)" kann syntaktisch an dieser Stelle nicht verarbeitet werden.

I have installed this scala version on a win 7 64 machine.
It resides in c:\Program Files (x86)\scala and has a path entry für the bin folder.

Would appreciate to get this solved.

@lrytz said:
I just tried this on a 64 bit Windows 10, works for me.. Also installed in "C:\Program Files (x86)\scala"

C:\Users\luc>echo %PATH%
C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\ProgramData\chocolatey\bin;C:\Program Files (x86)\Git\cmd;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\Program Files (x86)\sbt\bin;C:\Program Files\Java\jdk1.8.0_112\bin;C:\Program Files (x86)\scala\bin;C:\Users\luc\AppData\Local\Microsoft\WindowsApps;

C:\Users\luc>scala
Welcome to Scala 2.12.1 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_112).
Type in expressions for evaluation. Or try :help.

scala> 1
res0: Int = 1

@lrytz said:
Fixed in scala/scala#5666