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--- s800_daq_tools [2016/02/29 13:13]
pereira [Troubleshooting]
+++ s800_daq_tools [2016/02/29 13:28]
pereira [Troubleshooting]
@@ Line 89: / Line 89: @@
 ===== Troubleshooting =====
 There are several common reasons why the S800 DAQ may fails to start. The list below describes what to do to fix these problems.
+  * [[#No data sources defined]]
+  * [[#CCUSB and/or VMUSB claimed by existing programs]]
+  * [[#Manual rebooting]]
+==== No data sources defined ====
+When clicking ''Begin'' in the S800 Readout GUI, you get the error message: "No data sources are running so a run cannot be started". Very likely, the setting file **.settings.tcl** is missing. On a Linux session in u6pc5, type ''ls -lisa ~/stagearea''. You should see a hidden file **.settings.tcl**. If no, try the following:
+      - Go to **/mnt/daqtesting/s800/exxxxlast**, where **exxxxlast** corresponds to the experiment number of the last (successfully) run experiment
+      - Copy the file **.settings.tcl** from that directory to the current stagearea. **NOTE**: we are assuming that the stagearea is pointing to the new experiment directory **/mnt/daqtesting/s800/exxxxnew**
+      - If you cannot find that file, there is an old version that can be copied from the directory **/user/s800/converged_daq**
+      - You should now be able to run ReadoutGUI without problem
 ==== CCUSB and/or VMUSB claimed by existing programs ====
 One of the most common reasons why the S800 DAQ fails to start is because the CCUSB and/or VMUSB are claimed by existing programs. This is shown by the error messages displayed by the system. If you find yourself in this situation try the following:

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