Problems installing DDT into Eclipse

[Ralph Tandetzky via Digitalmars-d-ide]

Hi! I'm trying to install DDT into Eclipse. I have a fresh 
Eclipse Platform 3.8.1 installed on my Linux Mint 17.1 Cinnamon 
x86-64-bit. I followed the instructions on 
https://github.com/DDT-IDE/DDT/blob/latest/documentation/Installation.md#installation up until step 5 where I get an error message on the second page of the wizard: "The operation cannot be completed.  See the details." In the details the following text appears:

Cannot complete the install because of a conflicting dependency.
   Software being installed: DDT - D Development Tools 
0.13.1.v201508241541 (org.dsource.ddt.feature.group 
0.13.1.v201508241541)
   Software currently installed: Eclipse Platform 3.7.0.debbuild 
(org.eclipse.platform.ide 3.7.0.debbuild)
   Only one of the following can be installed at once:
     Equinox Java Authentication and Authorization Service (JAAS) 
1.2.100.v20150423-1356 (org.eclipse.equinox.security 
1.2.100.v20150423-1356)
     Equinox Java Authentication and Authorization Service (JAAS) 
1.1.100.dist (org.eclipse.equinox.security 1.1.100.dist)
     Equinox Java Authentication and Authorization Service (JAAS) 
1.1.1.R37x_v20110822-1018 (org.eclipse.equinox.security 
1.1.1.R37x_v20110822-1018)
     Equinox Java Authentication and Authorization Service (JAAS) 
1.1.0.v20110502 (org.eclipse.equinox.security 1.1.0.v20110502)
   Cannot satisfy dependency:
     From: DDT - D Development Tools - Core Feature 
0.13.1.v201508241541 (org.dsource.ddt.base.feature.group 
0.13.1.v201508241541)
     To: org.eclipse.platform.feature.group [4.5.0,5.0.0)
   Cannot satisfy dependency:
     From: DDT - D Development Tools 0.13.1.v201508241541 
(org.dsource.ddt.feature.group 0.13.1.v201508241541)
     To: org.dsource.ddt.base.feature.group [0.13.1.v201508241541]
   Cannot satisfy dependency:
     From: Eclipse Platform 
3.8.1.dist-A8F8_IVRG4VZSCmeloKVfCrtIFotGyJZcMPL9 
(org.eclipse.platform.feature.group 
3.8.1.dist-A8F8_IVRG4VZSCmeloKVfCrtIFotGyJZcMPL9)
     To: org.eclipse.equinox.security [1.1.100.dist]
   Cannot satisfy dependency:
     From: Eclipse Platform 4.5.0.v20150603-2358 
(org.eclipse.platform.feature.group 4.5.0.v20150603-2358)
     To: org.eclipse.equinox.security [1.2.100.v20150423-1356]
   Cannot satisfy dependency:
     From: Eclipse Platform 4.5.1.v20150904-0015 
(org.eclipse.platform.feature.group 4.5.1.v20150904-0015)
     To: org.eclipse.equinox.security [1.2.100.v20150423-1356]
   Cannot satisfy dependency:
     From: Eclipse Platform 3.7.0.debbuild 
(org.eclipse.platform.ide 3.7.0.debbuild)
     To: org.eclipse.platform.feature.group 
[3.8.1.dist-A8F8_IVRG4VZSCmeloKVfCrtIFotGyJZcMPL9]

I'm not very experienced with Eclipse at all. Can anyone help me 
with this issue? It would be greatly appreciated.

Thanks in advance,
Ralph