I got same error while installing multiple coin apps,although Ledger Nano S supports multiple cryptocurrencies but it can support about 5 at a time(exact count may vary) but don't be disheartened as you can still install and manage 10 Crypto currencies using the same Ledger Nano S as below:

(Apart from the 10 above there are Komodo,PoSw,Hello,Fido U2F--not sure what are these though--may be some Ledger interfaces for enhanced security )
But for using all 10 coin wallets all you need to do is uninstall the one that you are not currently using and install the other one,yes i know it sounds crazy but don't worry you coins will not get lost because the coins are managed at the addresses on the blockchain ; for example you have 3 Eth in your hardware wallet and now you want to access Dash wallet but you don't have enough space on the hardware ledger nano s ,all you need to do is that since you are not currently using the Eth on your wallet,you uninstall the Eth wallet from the Ledger device you have using Ledger Wallet manager see below:
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After you have uninstalled the Eth wallet,you can download and install the Dash wallet from Ledger Manager and may be receive some coins in it.
Now suppose you want to access your Ethereum that you previously held at your ledger wallet,so you can repeat this process again but in a reverse manner...meaning you can uninstall Dash wallet and reinstall the Ethereum wallet using Ledger manager and there you go..you have full access to your
Ethereum again..yeah i know it sounds crazy,but its cooool. :)
Hardware wallets are probably the safest means of storing your valuable cryptos.
But again friends ..don't go on my word,do your due diligence,i found some information from ledger support as below:

http://support.ledgerwallet.com/knowledge_base/topics/unable-to-install-dot-dot-dot-error-message