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The error takes place when might appear after Windows was upgraded or upgrades/updates. To resolve it, please follow these steps:<br># Restart your PC# Go to the '''Windows updates were installed and Start''' menu → '''Settings''' (gear icon) → '''Apps''' # Select MultiCharts → click Uninstall → in the Setup Wizard click Next → '''Repair'''If the issue is usually not resolved if you simply do after the followingrepair, please [https://www.multicharts.com/support/ contact support] or try the steps below.
== Reinstalling MultiCharts ==
# Close all MultiCharts products and make sure all [[MultiCharts Processes]] are finished in Windows Task Manager.
# Uninstall MultiCharts from your computer:
#* Windows Go to the '''Windows Start'''#* Open menu → '''Control PanelSettings'''#* Select (gear icon) → '''Uninstall a programApps'''#* Find Select MultiCharts → click Uninstall → in the Setup Wizard click Next → '''MultiChartsRemove'''<div style="background-color: #* Select dd9914;">'''UninstallNote: '''#* Click Do '''NextNOT'''check the "Remove MultiCharts user data from computer" box, leave it clear.</div>
#* Click '''Remove'''
# Install MultiCharts again, using a different, '''short''' directory:
#* If you don't have Download the installer saved on your local drive, please <br>[https://www.multicharts.com/download/ '''MultiCharts''']<br>[https://www.multicharts.com/net/ download the latest release or beta version/ '''MultiCharts .NET''']#* Click Launch the installer and click '''Install'''#* Click → in the Setup Wizard click '''Next''' #* Check → check the box "''I accept the terms in the License Agreement''"#* Click box and click '''Next''' #* Click → click '''Next''' in the What's new window #* Click In the Destination Folder window click '''Change''' #* Change the folder name to '''C:\MC''' or '''C:\MC64''' and click '''OK'''#* Click and '''Next'''#* After the installation processes is over, click '''Finish''' button.<br>----<br>== Short paths ==
In case the error still appears, it means that there is an issue with short paths.<br>
To resolve it, pleasefollow these steps:
# Close all MultiCharts products and make sure all [[MultiCharts Processes]] are finished in Windows Task Manager.
# Click on Go to the '''Windows Start button''', then '''Runmenu''' and type '''Regedit'''. Press Launch the '''EnterRegistry Editor'''.
# In the Registry open the path: '''HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\FileSystem'''
# Change the value of the '''NtfsDisable8dot3NameCreation''' key to '''0'''.
After the system is rebooted,
#'''Launch MultiCharts''' by : '''right-click on its iconthe shortcut''' and selecting -> '''Run as administrator''' (''if you don't have this option, use regular double-click'').# In MultiCharts, go to '''File''' menu and select -> '''Preferences'''.# On In the '''DirectoriesMisc''' tab change the Studies directory of the folder with your studies by clicking : click the '''...''' button for '''Studies''' (remember the old path). It is important to use a simple path. We recommend creating '''C:\MyStudies'''.<div style="background-color: #E3FBE5;">'''Note:''' The Permissions for this new folder should be set to '''Full Control''' for all users that will access this folder in the PowerLanguage Editor. </div>
# Close MultiCharts.
# Make sure all [[MultiCharts Processes]] are ended in the Windows Task Manager.
# Copy the whole '''Studies''' folder from the old location (for MC 32 bit: %allusersprofile%\TS Support\MultiCharts\StudyServer; for MC 64 bit: %allusersprofile%\TS Support\MultiCharts\StudyServer) to the new one (replacing the existing files).
# Restart MultiCharts.
If your MultiCharts version is '''below 8.8''' and you are unable to update please follow these instructions:
# Open the '''compiler_error.log file'''. Depending on what path is written in the file you will have to rename several folders in one of 2 possible locations:
::# Open the new '''MultiCharts''' folder. Rename the '''StudyServer''' folder into '''StudyServerOld'''. Create new folder '''StudyServer'''. Move everything from '''StudyServerOld''' into the new '''StudyServer'''. Delete the '''StudyServerOld''' folder.
In case an empty Study still does not compile, the location of system TEMP and TMP folders should be changed:
# Click '''Windows Start''' button.
# In the opened window, change Variable Value to '''C:\Windows\Temp''' and click OK.
<br>
Run PowerLanguage, create a new study (any type) and try to compile it. It should be compiled without any errors. If the issue persists, please contact our support team in [[http://messenger.providesupport.com/messenger/tssupport.html| Live Chat]].
[[Category:FAQ]]